./move.sh

8 files changed, 2729 insertions, 0 deletions

diff --git a/src/systemd-bootchart/Makefile b/src/systemd-bootchart/Makefile
new file mode 100644
index 0000000000..e564e1bfd9
--- /dev/null
+++ b/src/systemd-bootchart/Makefile
@@ -0,0 +1,52 @@
+#  -*- Mode: makefile; indent-tabs-mode: t -*-
+#
+#  This file is part of systemd.
+#
+#  Copyright 2010-2012 Lennart Poettering
+#  Copyright 2010-2012 Kay Sievers
+#  Copyright 2013 Zbigniew Jędrzejewski-Szmek
+#  Copyright 2013 David Strauss
+#  Copyright 2016 Luke Shumaker
+#
+#  systemd is free software; you can redistribute it and/or modify it
+#  under the terms of the GNU Lesser General Public License as published by
+#  the Free Software Foundation; either version 2.1 of the License, or
+#  (at your option) any later version.
+#
+#  systemd is distributed in the hope that it will be useful, but
+#  WITHOUT ANY WARRANTY; without even the implied warranty of
+#  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+#  Lesser General Public License for more details.
+#
+#  You should have received a copy of the GNU Lesser General Public License
+#  along with systemd; If not, see <http://www.gnu.org/licenses/>.
+include $(dir $(lastword $(MAKEFILE_LIST)))/../../config.mk
+include $(topsrcdir)/build-aux/Makefile.head.mk
+
+ifneq ($(ENABLE_BOOTCHART),)
+systemd_bootchart_SOURCES = \
+	src/bootchart/bootchart.c \
+	src/bootchart/bootchart.h \
+	src/bootchart/store.c \
+	src/bootchart/store.h \
+	src/bootchart/svg.c \
+	src/bootchart/svg.h
+
+systemd_bootchart_LDADD = \
+	libshared.la
+
+libexec_PROGRAMS += \
+	systemd-bootchart
+
+dist_pkgsysconf_DATA += \
+	src/bootchart/bootchart.conf
+
+nodist_systemunit_DATA += \
+	units/systemd-bootchart.service
+endif
+
+EXTRA_DIST += \
+	units/systemd-bootchart.service.in
+
+$(eval $(value automake2autothing))
+include $(topsrcdir)/build-aux/Makefile.tail.mk
diff --git a/src/systemd-bootchart/bootchart.c b/src/systemd-bootchart/bootchart.c
new file mode 100644
index 0000000000..8755b2d884
--- /dev/null
+++ b/src/systemd-bootchart/bootchart.c
@@ -0,0 +1,531 @@
+/***
+  This file is part of systemd.
+
+  Copyright (C) 2009-2013 Intel Corporation
+
+  Authors:
+    Auke Kok <auke-jan.h.kok@intel.com>
+
+  systemd is free software; you can redistribute it and/or modify it
+  under the terms of the GNU Lesser General Public License as published by
+  the Free Software Foundation; either version 2.1 of the License, or
+  (at your option) any later version.
+
+  systemd is distributed in the hope that it will be useful, but
+  WITHOUT ANY WARRANTY; without even the implied warranty of
+  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+  Lesser General Public License for more details.
+
+  You should have received a copy of the GNU Lesser General Public License
+  along with systemd; If not, see <http://www.gnu.org/licenses/>.
+ ***/
+
+/***
+
+  Many thanks to those who contributed ideas and code:
+  - Ziga Mahkovec - Original bootchart author
+  - Anders Norgaard - PyBootchartgui
+  - Michael Meeks - bootchart2
+  - Scott James Remnant - Ubuntu C-based logger
+  - Arjan van der Ven - for the idea to merge bootgraph.pl functionality
+
+ ***/
+
+#include <errno.h>
+#include <fcntl.h>
+#include <getopt.h>
+#include <limits.h>
+#include <signal.h>
+#include <stdbool.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <sys/resource.h>
+#include <time.h>
+#include <unistd.h>
+
+#include <systemd/sd-journal.h>
+
+#include "alloc-util.h"
+#include "bootchart.h"
+#include "conf-parser.h"
+#include "def.h"
+#include "fd-util.h"
+#include "fileio.h"
+#include "io-util.h"
+#include "list.h"
+#include "macro.h"
+#include "parse-util.h"
+#include "path-util.h"
+#include "store.h"
+#include "string-util.h"
+#include "strxcpyx.h"
+#include "svg.h"
+#include "util.h"
+
+static int exiting = 0;
+
+#define DEFAULT_SAMPLES_LEN 500
+#define DEFAULT_HZ 25.0
+#define DEFAULT_SCALE_X 100.0 /* 100px = 1sec */
+#define DEFAULT_SCALE_Y 20.0  /* 16px = 1 process bar */
+#define DEFAULT_INIT ROOTLIBEXECDIR "/systemd"
+#define DEFAULT_OUTPUT "/run/log"
+
+/* graph defaults */
+bool arg_entropy = false;
+bool arg_initcall = true;
+bool arg_relative = false;
+bool arg_filter = true;
+bool arg_show_cmdline = false;
+bool arg_show_cgroup = false;
+bool arg_pss = false;
+bool arg_percpu = false;
+int arg_samples_len = DEFAULT_SAMPLES_LEN; /* we record len+1 (1 start sample) */
+double arg_hz = DEFAULT_HZ;
+double arg_scale_x = DEFAULT_SCALE_X;
+double arg_scale_y = DEFAULT_SCALE_Y;
+
+char arg_init_path[PATH_MAX] = DEFAULT_INIT;
+char arg_output_path[PATH_MAX] = DEFAULT_OUTPUT;
+
+static void signal_handler(int sig) {
+        exiting = 1;
+}
+
+#define BOOTCHART_MAX (16*1024*1024)
+
+static void parse_conf(void) {
+        char *init = NULL, *output = NULL;
+        const ConfigTableItem items[] = {
+                { "Bootchart", "Samples",          config_parse_int,    0, &arg_samples_len },
+                { "Bootchart", "Frequency",        config_parse_double, 0, &arg_hz          },
+                { "Bootchart", "Relative",         config_parse_bool,   0, &arg_relative    },
+                { "Bootchart", "Filter",           config_parse_bool,   0, &arg_filter      },
+                { "Bootchart", "Output",           config_parse_path,   0, &output          },
+                { "Bootchart", "Init",             config_parse_path,   0, &init            },
+                { "Bootchart", "PlotMemoryUsage",  config_parse_bool,   0, &arg_pss         },
+                { "Bootchart", "PlotEntropyGraph", config_parse_bool,   0, &arg_entropy     },
+                { "Bootchart", "ScaleX",           config_parse_double, 0, &arg_scale_x     },
+                { "Bootchart", "ScaleY",           config_parse_double, 0, &arg_scale_y     },
+                { "Bootchart", "ControlGroup",     config_parse_bool,   0, &arg_show_cgroup },
+                { "Bootchart", "PerCPU",           config_parse_bool,   0, &arg_percpu      },
+                { NULL, NULL, NULL, 0, NULL }
+        };
+
+        config_parse_many(PKGSYSCONFDIR "/bootchart.conf",
+                          CONF_PATHS_NULSTR("systemd/bootchart.conf.d"),
+                          NULL, config_item_table_lookup, items, true, NULL);
+
+        if (init != NULL)
+                strscpy(arg_init_path, sizeof(arg_init_path), init);
+        if (output != NULL)
+                strscpy(arg_output_path, sizeof(arg_output_path), output);
+}
+
+static void help(void) {
+        printf("Usage: %s [OPTIONS]\n\n"
+               "Options:\n"
+               "  -r --rel             Record time relative to recording\n"
+               "  -f --freq=FREQ       Sample frequency [%g]\n"
+               "  -n --samples=N       Stop sampling at [%d] samples\n"
+               "  -x --scale-x=N       Scale the graph horizontally [%g] \n"
+               "  -y --scale-y=N       Scale the graph vertically [%g] \n"
+               "  -p --pss             Enable PSS graph (CPU intensive)\n"
+               "  -e --entropy         Enable the entropy_avail graph\n"
+               "  -o --output=PATH     Path to output files [%s]\n"
+               "  -i --init=PATH       Path to init executable [%s]\n"
+               "  -F --no-filter       Disable filtering of unimportant or ephemeral processes\n"
+               "  -C --cmdline         Display full command lines with arguments\n"
+               "  -c --control-group   Display process control group\n"
+               "     --per-cpu         Draw each CPU utilization and wait bar also\n"
+               "  -h --help            Display this message\n\n"
+               "See bootchart.conf for more information.\n",
+               program_invocation_short_name,
+               DEFAULT_HZ,
+               DEFAULT_SAMPLES_LEN,
+               DEFAULT_SCALE_X,
+               DEFAULT_SCALE_Y,
+               DEFAULT_OUTPUT,
+               DEFAULT_INIT);
+}
+
+static int parse_argv(int argc, char *argv[]) {
+
+        enum {
+                ARG_PERCPU = 0x100,
+        };
+
+        static const struct option options[] = {
+                {"rel",           no_argument,        NULL,  'r'       },
+                {"freq",          required_argument,  NULL,  'f'       },
+                {"samples",       required_argument,  NULL,  'n'       },
+                {"pss",           no_argument,        NULL,  'p'       },
+                {"output",        required_argument,  NULL,  'o'       },
+                {"init",          required_argument,  NULL,  'i'       },
+                {"no-filter",     no_argument,        NULL,  'F'       },
+                {"cmdline",       no_argument,        NULL,  'C'       },
+                {"control-group", no_argument,        NULL,  'c'       },
+                {"help",          no_argument,        NULL,  'h'       },
+                {"scale-x",       required_argument,  NULL,  'x'       },
+                {"scale-y",       required_argument,  NULL,  'y'       },
+                {"entropy",       no_argument,        NULL,  'e'       },
+                {"per-cpu",       no_argument,        NULL,  ARG_PERCPU},
+                {}
+        };
+        int c, r;
+
+        if (getpid() == 1)
+                opterr = 0;
+
+        while ((c = getopt_long(argc, argv, "erpf:n:o:i:FCchx:y:", options, NULL)) >= 0)
+                switch (c) {
+
+                case 'r':
+                        arg_relative = true;
+                        break;
+                case 'f':
+                        r = safe_atod(optarg, &arg_hz);
+                        if (r < 0)
+                                log_warning_errno(r, "failed to parse --freq/-f argument '%s': %m",
+                                                  optarg);
+                        break;
+                case 'F':
+                        arg_filter = false;
+                        break;
+                case 'C':
+                        arg_show_cmdline = true;
+                        break;
+                case 'c':
+                        arg_show_cgroup = true;
+                        break;
+                case 'n':
+                        r = safe_atoi(optarg, &arg_samples_len);
+                        if (r < 0)
+                                log_warning_errno(r, "failed to parse --samples/-n argument '%s': %m",
+                                                  optarg);
+                        break;
+                case 'o':
+                        path_kill_slashes(optarg);
+                        strscpy(arg_output_path, sizeof(arg_output_path), optarg);
+                        break;
+                case 'i':
+                        path_kill_slashes(optarg);
+                        strscpy(arg_init_path, sizeof(arg_init_path), optarg);
+                        break;
+                case 'p':
+                        arg_pss = true;
+                        break;
+                case 'x':
+                        r = safe_atod(optarg, &arg_scale_x);
+                        if (r < 0)
+                                log_warning_errno(r, "failed to parse --scale-x/-x argument '%s': %m",
+                                                  optarg);
+                        break;
+                case 'y':
+                        r = safe_atod(optarg, &arg_scale_y);
+                        if (r < 0)
+                                log_warning_errno(r, "failed to parse --scale-y/-y argument '%s': %m",
+                                                  optarg);
+                        break;
+                case 'e':
+                        arg_entropy = true;
+                        break;
+                case ARG_PERCPU:
+                        arg_percpu = true;
+                        break;
+                case 'h':
+                        help();
+                        return 0;
+                case '?':
+                        if (getpid() != 1)
+                                return -EINVAL;
+                        else
+                                return 0;
+                default:
+                        assert_not_reached("Unhandled option code.");
+                }
+
+        if (arg_hz <= 0) {
+                log_error("Frequency needs to be > 0");
+                return -EINVAL;
+        }
+
+        return 1;
+}
+
+static int do_journal_append(char *file) {
+        _cleanup_free_ char *bootchart_message = NULL;
+        _cleanup_free_ char *bootchart_file = NULL;
+        _cleanup_free_ char *p = NULL;
+        _cleanup_close_ int fd = -1;
+        struct iovec iovec[5];
+        int r, j = 0;
+        ssize_t n;
+
+        bootchart_file = strappend("BOOTCHART_FILE=", file);
+        if (!bootchart_file)
+                return log_oom();
+
+        IOVEC_SET_STRING(iovec[j++], bootchart_file);
+        IOVEC_SET_STRING(iovec[j++], "MESSAGE_ID=9f26aa562cf440c2b16c773d0479b518");
+        IOVEC_SET_STRING(iovec[j++], "PRIORITY=7");
+        bootchart_message = strjoin("MESSAGE=Bootchart created: ", file, NULL);
+        if (!bootchart_message)
+                return log_oom();
+
+        IOVEC_SET_STRING(iovec[j++], bootchart_message);
+
+        p = malloc(10 + BOOTCHART_MAX);
+        if (!p)
+                return log_oom();
+
+        memcpy(p, "BOOTCHART=", 10);
+
+        fd = open(file, O_RDONLY|O_CLOEXEC);
+        if (fd < 0)
+                return log_error_errno(errno, "Failed to open bootchart data \"%s\": %m", file);
+
+        n = loop_read(fd, p + 10, BOOTCHART_MAX, false);
+        if (n < 0)
+                return log_error_errno(n, "Failed to read bootchart data: %m");
+
+        iovec[j].iov_base = p;
+        iovec[j].iov_len = 10 + n;
+        j++;
+
+        r = sd_journal_sendv(iovec, j);
+        if (r < 0)
+                log_error_errno(r, "Failed to send bootchart: %m");
+
+        return 0;
+}
+
+int main(int argc, char *argv[]) {
+        static struct list_sample_data *sampledata;
+        _cleanup_closedir_ DIR *proc = NULL;
+        _cleanup_free_ char *build = NULL;
+        _cleanup_fclose_ FILE *of = NULL;
+        _cleanup_close_ int sysfd = -1;
+        struct ps_struct *ps_first;
+        double graph_start;
+        double log_start;
+        double interval;
+        char output_file[PATH_MAX];
+        char datestr[200];
+        int pscount = 0;
+        int n_cpus = 0;
+        int overrun = 0;
+        time_t t = 0;
+        int r, samples;
+        struct ps_struct *ps;
+        struct rlimit rlim;
+        struct list_sample_data *head;
+        struct sigaction sig = {
+                .sa_handler = signal_handler,
+        };
+
+        parse_conf();
+
+        r = parse_argv(argc, argv);
+        if (r < 0)
+                return EXIT_FAILURE;
+
+        if (r == 0)
+                return EXIT_SUCCESS;
+
+        /*
+         * If the kernel executed us through init=/usr/lib/systemd/systemd-bootchart, then
+         * fork:
+         * - parent execs executable specified via init_path[] (/usr/lib/systemd/systemd by default) as pid=1
+         * - child logs data
+         */
+        if (getpid() == 1) {
+                if (fork())
+                        /* parent */
+                        execl(arg_init_path, arg_init_path, NULL);
+        }
+        argv[0][0] = '@';
+
+        rlim.rlim_cur = 4096;
+        rlim.rlim_max = 4096;
+        (void) setrlimit(RLIMIT_NOFILE, &rlim);
+
+        /* start with empty ps LL */
+        ps_first = new0(struct ps_struct, 1);
+        if (!ps_first) {
+                log_oom();
+                return EXIT_FAILURE;
+        }
+
+        /* handle TERM/INT nicely */
+        sigaction(SIGHUP, &sig, NULL);
+
+        interval = (1.0 / arg_hz) * 1000000000.0;
+
+        if (arg_relative)
+                graph_start = log_start = gettime_ns();
+        else {
+                struct timespec n;
+                double uptime;
+
+                clock_gettime(clock_boottime_or_monotonic(), &n);
+                uptime = (n.tv_sec + (n.tv_nsec / (double) NSEC_PER_SEC));
+
+                log_start = gettime_ns();
+                graph_start = log_start - uptime;
+        }
+
+        if (graph_start < 0.0) {
+                log_error("Failed to setup graph start time.\n\n"
+                          "The system uptime probably includes time that the system was suspended. "
+                          "Use --rel to bypass this issue.");
+                return EXIT_FAILURE;
+        }
+
+        LIST_HEAD_INIT(head);
+
+        /* main program loop */
+        for (samples = 0; !exiting && samples < arg_samples_len; samples++) {
+                int res;
+                double sample_stop;
+                double elapsed;
+                double timeleft;
+
+                sampledata = new0(struct list_sample_data, 1);
+                if (sampledata == NULL) {
+                        log_oom();
+                        return EXIT_FAILURE;
+                }
+
+                sampledata->sampletime = gettime_ns();
+                sampledata->counter = samples;
+
+                if (sysfd < 0)
+                        sysfd = open("/sys", O_RDONLY|O_CLOEXEC);
+
+                if (!build) {
+                        if (parse_env_file("/etc/os-release", NEWLINE, "PRETTY_NAME", &build, NULL) == -ENOENT)
+                                parse_env_file("/usr/lib/os-release", NEWLINE, "PRETTY_NAME", &build, NULL);
+                }
+
+                if (proc)
+                        rewinddir(proc);
+                else
+                        proc = opendir("/proc");
+
+                /* wait for /proc to become available, discarding samples */
+                if (proc) {
+                        r = log_sample(proc, samples, ps_first, &sampledata, &pscount, &n_cpus);
+                        if (r < 0)
+                                return EXIT_FAILURE;
+                }
+
+                sample_stop = gettime_ns();
+
+                elapsed = (sample_stop - sampledata->sampletime) * 1000000000.0;
+                timeleft = interval - elapsed;
+
+                /*
+                 * check if we have not consumed our entire timeslice. If we
+                 * do, don't sleep and take a new sample right away.
+                 * we'll lose all the missed samples and overrun our total
+                 * time
+                 */
+                if (timeleft > 0) {
+                        struct timespec req;
+
+                        req.tv_sec = (time_t)(timeleft / 1000000000.0);
+                        req.tv_nsec = (long)(timeleft - (req.tv_sec * 1000000000.0));
+
+                        res = nanosleep(&req, NULL);
+                        if (res) {
+                                if (errno == EINTR)
+                                        /* caught signal, probably HUP! */
+                                        break;
+                                log_error_errno(errno, "nanosleep() failed: %m");
+                                return EXIT_FAILURE;
+                        }
+                } else {
+                        overrun++;
+                        /* calculate how many samples we lost and scrap them */
+                        arg_samples_len -= (int)(-timeleft / interval);
+                }
+                LIST_PREPEND(link, head, sampledata);
+        }
+
+        /* do some cleanup, close fd's */
+        ps = ps_first;
+        while (ps->next_ps) {
+                ps = ps->next_ps;
+                ps->schedstat = safe_close(ps->schedstat);
+                ps->sched = safe_close(ps->sched);
+                ps->smaps = safe_fclose(ps->smaps);
+        }
+
+        if (!of) {
+                t = time(NULL);
+                r = strftime(datestr, sizeof(datestr), "%Y%m%d-%H%M", localtime(&t));
+                assert_se(r > 0);
+
+                snprintf(output_file, PATH_MAX, "%s/bootchart-%s.svg", arg_output_path, datestr);
+                of = fopen(output_file, "we");
+        }
+
+        if (!of) {
+                log_error("Error opening output file '%s': %m\n", output_file);
+                return EXIT_FAILURE;
+        }
+
+        r = svg_do(of, strna(build), head, ps_first,
+                   samples, pscount, n_cpus, graph_start,
+                   log_start, interval, overrun);
+
+        if (r < 0) {
+                log_error_errno(r, "Error generating svg file: %m");
+                return EXIT_FAILURE;
+        }
+
+        log_info("systemd-bootchart wrote %s\n", output_file);
+
+        r = do_journal_append(output_file);
+        if (r < 0)
+                return EXIT_FAILURE;
+
+        /* nitpic cleanups */
+        ps = ps_first->next_ps;
+        while (ps->next_ps) {
+                struct ps_struct *old;
+
+                old = ps;
+                old->sample = ps->first;
+                ps = ps->next_ps;
+                while (old->sample->next) {
+                        struct ps_sched_struct *oldsample = old->sample;
+
+                        old->sample = old->sample->next;
+                        free(oldsample);
+                }
+                free(old->cgroup);
+                free(old->sample);
+                free(old);
+        }
+
+        free(ps->cgroup);
+        free(ps->sample);
+        free(ps);
+
+        sampledata = head;
+        while (sampledata->link_prev) {
+                struct list_sample_data *old_sampledata = sampledata;
+                sampledata = sampledata->link_prev;
+                free(old_sampledata);
+        }
+        free(sampledata);
+
+        /* don't complain when overrun once, happens most commonly on 1st sample */
+        if (overrun > 1)
+                log_warning("systemd-bootchart: sample time overrun %i times\n", overrun);
+
+        return 0;
+}
diff --git a/src/systemd-bootchart/bootchart.conf b/src/systemd-bootchart/bootchart.conf
new file mode 100644
index 0000000000..4f5e50936e
--- /dev/null
+++ b/src/systemd-bootchart/bootchart.conf
@@ -0,0 +1,26 @@
+#  This file is part of systemd.
+#
+#  systemd is free software; you can redistribute it and/or modify it
+#  under the terms of the GNU Lesser General Public License as published by
+#  the Free Software Foundation; either version 2.1 of the License, or
+#  (at your option) any later version.
+#
+# Entries in this file show the compile time defaults.
+# You can change settings by editing this file.
+# Defaults can be restored by simply deleting this file.
+#
+# See bootchart.conf(5) for details.
+
+[Bootchart]
+#Samples=500
+#Frequency=25
+#Relative=no
+#Filter=yes
+#Output=<folder name, defaults to /run/log>
+#Init=/path/to/init-binary
+#PlotMemoryUsage=no
+#PlotEntropyGraph=no
+#ScaleX=100
+#ScaleY=20
+#ControlGroup=no
+#PerCPU=no
diff --git a/src/systemd-bootchart/bootchart.h b/src/systemd-bootchart/bootchart.h
new file mode 100644
index 0000000000..1b445b954b
--- /dev/null
+++ b/src/systemd-bootchart/bootchart.h
@@ -0,0 +1,119 @@
+#pragma once
+
+/***
+  This file is part of systemd.
+
+  Copyright (C) 2009-2013 Intel Corporation
+
+  Authors:
+    Auke Kok <auke-jan.h.kok@intel.com>
+
+  systemd is free software; you can redistribute it and/or modify it
+  under the terms of the GNU Lesser General Public License as published by
+  the Free Software Foundation; either version 2.1 of the License, or
+  (at your option) any later version.
+
+  systemd is distributed in the hope that it will be useful, but
+  WITHOUT ANY WARRANTY; without even the implied warranty of
+  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+  Lesser General Public License for more details.
+
+  You should have received a copy of the GNU Lesser General Public License
+  along with systemd; If not, see <http://www.gnu.org/licenses/>.
+***/
+
+#include <stdbool.h>
+
+#include "list.h"
+
+#define MAXCPUS        16
+#define MAXPIDS     65535
+
+struct block_stat_struct {
+        /* /proc/vmstat pgpgin & pgpgout */
+        int bi;
+        int bo;
+};
+
+struct cpu_stat_sample_struct {
+        /* /proc/schedstat fields 10 & 11 (after name) */
+        double runtime;
+        double waittime;
+};
+
+/* per process, per sample data we will log */
+struct ps_sched_struct {
+        /* /proc/<n>/schedstat fields 1 & 2 */
+        double runtime;
+        double waittime;
+        int pss;
+        struct list_sample_data *sampledata;
+        struct ps_sched_struct *next;
+        struct ps_sched_struct *prev;
+        struct ps_sched_struct *cross; /* cross pointer */
+        struct ps_struct *ps_new;
+};
+
+struct list_sample_data {
+        double runtime[MAXCPUS];
+        double waittime[MAXCPUS];
+        double sampletime;
+        int entropy_avail;
+        struct block_stat_struct blockstat;
+        LIST_FIELDS(struct list_sample_data, link); /* DLL */
+        int counter;
+};
+
+/* process info */
+struct ps_struct {
+        struct ps_struct *next_ps;    /* SLL pointer */
+        struct ps_struct *parent;     /* ppid ref */
+        struct ps_struct *children;   /* children */
+        struct ps_struct *next;       /* siblings */
+
+        /* must match - otherwise it's a new process with same PID */
+        char name[256];
+        int pid;
+        int ppid;
+        char *cgroup;
+
+        /* cache fd's */
+        int sched;
+        int schedstat;
+        FILE *smaps;
+
+        /* pointers to first/last seen timestamps */
+        struct ps_sched_struct *first;
+        struct ps_sched_struct *last;
+
+        /* records actual start time, may be way before bootchart runs */
+        double starttime;
+
+        /* record human readable total cpu time */
+        double total;
+
+        /* largest PSS size found */
+        int pss_max;
+
+        /* for drawing connection lines later */
+        double pos_x;
+        double pos_y;
+
+        struct ps_sched_struct *sample;
+};
+
+extern bool arg_relative;
+extern bool arg_filter;
+extern bool arg_show_cmdline;
+extern bool arg_show_cgroup;
+extern bool arg_pss;
+extern bool arg_entropy;
+extern bool arg_percpu;
+extern bool arg_initcall;
+extern int  arg_samples_len;
+extern double arg_hz;
+extern double arg_scale_x;
+extern double arg_scale_y;
+
+extern char arg_output_path[PATH_MAX];
+extern char arg_init_path[PATH_MAX];
diff --git a/src/systemd-bootchart/store.c b/src/systemd-bootchart/store.c
new file mode 100644
index 0000000000..42cb8043ce
--- /dev/null
+++ b/src/systemd-bootchart/store.c
@@ -0,0 +1,555 @@
+/***
+  This file is part of systemd.
+
+  Copyright (C) 2009-2013 Intel Corporation
+
+  Authors:
+    Auke Kok <auke-jan.h.kok@intel.com>
+
+  systemd is free software; you can redistribute it and/or modify it
+  under the terms of the GNU Lesser General Public License as published by
+  the Free Software Foundation; either version 2.1 of the License, or
+  (at your option) any later version.
+
+  systemd is distributed in the hope that it will be useful, but
+  WITHOUT ANY WARRANTY; without even the implied warranty of
+  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+  Lesser General Public License for more details.
+
+  You should have received a copy of the GNU Lesser General Public License
+  along with systemd; If not, see <http://www.gnu.org/licenses/>.
+ ***/
+
+#include <dirent.h>
+#include <fcntl.h>
+#include <limits.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <time.h>
+#include <unistd.h>
+
+#include "alloc-util.h"
+#include "bootchart.h"
+#include "cgroup-util.h"
+#include "dirent-util.h"
+#include "fd-util.h"
+#include "fileio.h"
+#include "parse-util.h"
+#include "store.h"
+#include "string-util.h"
+#include "strxcpyx.h"
+#include "time-util.h"
+#include "util.h"
+
+/*
+ * Alloc a static 4k buffer for stdio - primarily used to increase
+ * PSS buffering from the default 1k stdin buffer to reduce
+ * read() overhead.
+ */
+static char smaps_buf[4096];
+static int skip = 0;
+
+double gettime_ns(void) {
+        struct timespec n;
+
+        clock_gettime(CLOCK_MONOTONIC, &n);
+
+        return (n.tv_sec + (n.tv_nsec / (double) NSEC_PER_SEC));
+}
+
+static char *bufgetline(char *buf) {
+        char *c;
+
+        if (!buf)
+                return NULL;
+
+        c = strchr(buf, '\n');
+        if (c)
+                c++;
+
+        return c;
+}
+
+static int pid_cmdline_strscpy(int procfd, char *buffer, size_t buf_len, int pid) {
+        char filename[PATH_MAX];
+        _cleanup_close_ int fd = -1;
+        ssize_t n;
+
+        sprintf(filename, "%d/cmdline", pid);
+        fd = openat(procfd, filename, O_RDONLY|O_CLOEXEC);
+        if (fd < 0)
+                return -errno;
+
+        n = read(fd, buffer, buf_len-1);
+        if (n > 0) {
+                int i;
+                for (i = 0; i < n; i++)
+                        if (buffer[i] == '\0')
+                                buffer[i] = ' ';
+                buffer[n] = '\0';
+        }
+
+        return 0;
+}
+
+int log_sample(DIR *proc,
+               int sample,
+               struct ps_struct *ps_first,
+               struct list_sample_data **ptr,
+               int *pscount,
+               int *cpus) {
+
+        static int vmstat = -1;
+        _cleanup_free_ char *buf_schedstat = NULL;
+        char buf[4096];
+        char key[256];
+        char val[256];
+        char rt[256];
+        char wt[256];
+        char *m;
+        int r;
+        int c;
+        int p;
+        int mod;
+        static int e_fd = -1;
+        ssize_t s;
+        ssize_t n;
+        struct dirent *ent;
+        int fd;
+        struct list_sample_data *sampledata;
+        struct ps_sched_struct *ps_prev = NULL;
+        int procfd;
+        int taskfd = -1;
+
+        sampledata = *ptr;
+
+        procfd = dirfd(proc);
+        if (procfd < 0)
+                return -errno;
+
+        if (vmstat < 0) {
+                /* block stuff */
+                vmstat = openat(procfd, "vmstat", O_RDONLY|O_CLOEXEC);
+                if (vmstat < 0)
+                        return log_error_errno(errno, "Failed to open /proc/vmstat: %m");
+        }
+
+        n = pread(vmstat, buf, sizeof(buf) - 1, 0);
+        if (n <= 0) {
+                vmstat = safe_close(vmstat);
+                if (n < 0)
+                        return -errno;
+                return -ENODATA;
+        }
+
+        buf[n] = '\0';
+
+        m = buf;
+        while (m) {
+                if (sscanf(m, "%s %s", key, val) < 2)
+                        goto vmstat_next;
+                if (streq(key, "pgpgin"))
+                        sampledata->blockstat.bi = atoi(val);
+                if (streq(key, "pgpgout")) {
+                        sampledata->blockstat.bo = atoi(val);
+                        break;
+                }
+vmstat_next:
+                m = bufgetline(m);
+                if (!m)
+                        break;
+        }
+
+        /* Parse "/proc/schedstat" for overall CPU utilization */
+        r = read_full_file("/proc/schedstat", &buf_schedstat, NULL);
+        if (r < 0)
+            return log_error_errno(r, "Unable to read schedstat: %m");
+
+        m = buf_schedstat;
+        while (m) {
+                if (sscanf(m, "%s %*s %*s %*s %*s %*s %*s %s %s", key, rt, wt) < 3)
+                        goto schedstat_next;
+
+                if (strstr(key, "cpu")) {
+                        r = safe_atoi((const char*)(key+3), &c);
+                        if (r < 0 || c > MAXCPUS -1)
+                                /* Oops, we only have room for MAXCPUS data */
+                                break;
+                        sampledata->runtime[c] = atoll(rt);
+                        sampledata->waittime[c] = atoll(wt);
+
+                        if (c == *cpus)
+                                *cpus = c + 1;
+                }
+schedstat_next:
+                m = bufgetline(m);
+                if (!m)
+                        break;
+        }
+
+        if (arg_entropy) {
+                if (e_fd < 0) {
+                        e_fd = openat(procfd, "sys/kernel/random/entropy_avail", O_RDONLY|O_CLOEXEC);
+                        if (e_fd < 0)
+                                return log_error_errno(errno, "Failed to open /proc/sys/kernel/random/entropy_avail: %m");
+                }
+
+                n = pread(e_fd, buf, sizeof(buf) - 1, 0);
+                if (n <= 0) {
+                        e_fd = safe_close(e_fd);
+                } else {
+                        buf[n] = '\0';
+                        sampledata->entropy_avail = atoi(buf);
+                }
+        }
+
+        while ((ent = readdir(proc)) != NULL) {
+                char filename[PATH_MAX];
+                int pid;
+                struct ps_struct *ps;
+
+                if ((ent->d_name[0] < '0') || (ent->d_name[0] > '9'))
+                        continue;
+
+                pid = atoi(ent->d_name);
+
+                if (pid >= MAXPIDS)
+                        continue;
+
+                ps = ps_first;
+                while (ps->next_ps) {
+                        ps = ps->next_ps;
+                        if (ps->pid == pid)
+                                break;
+                }
+
+                /* end of our LL? then append a new record */
+                if (ps->pid != pid) {
+                        _cleanup_fclose_ FILE *st = NULL;
+                        char t[32];
+                        struct ps_struct *parent;
+
+                        ps->next_ps = new0(struct ps_struct, 1);
+                        if (!ps->next_ps)
+                                return log_oom();
+
+                        ps = ps->next_ps;
+                        ps->pid = pid;
+                        ps->sched = -1;
+                        ps->schedstat = -1;
+
+                        ps->sample = new0(struct ps_sched_struct, 1);
+                        if (!ps->sample)
+                                return log_oom();
+
+                        ps->sample->sampledata = sampledata;
+
+                        (*pscount)++;
+
+                        /* mark our first sample */
+                        ps->first = ps->last = ps->sample;
+                        ps->sample->runtime = atoll(rt);
+                        ps->sample->waittime = atoll(wt);
+
+                        /* get name, start time */
+                        if (ps->sched < 0) {
+                                sprintf(filename, "%d/sched", pid);
+                                ps->sched = openat(procfd, filename, O_RDONLY|O_CLOEXEC);
+                                if (ps->sched < 0)
+                                        continue;
+                        }
+
+                        s = pread(ps->sched, buf, sizeof(buf) - 1, 0);
+                        if (s <= 0) {
+                                ps->sched = safe_close(ps->sched);
+                                continue;
+                        }
+                        buf[s] = '\0';
+
+                        if (!sscanf(buf, "%s %*s %*s", key))
+                                continue;
+
+                        strscpy(ps->name, sizeof(ps->name), key);
+
+                        /* cmdline */
+                        if (arg_show_cmdline)
+                                pid_cmdline_strscpy(procfd, ps->name, sizeof(ps->name), pid);
+
+                        /* discard line 2 */
+                        m = bufgetline(buf);
+                        if (!m)
+                                continue;
+
+                        m = bufgetline(m);
+                        if (!m)
+                                continue;
+
+                        if (!sscanf(m, "%*s %*s %s", t))
+                                continue;
+
+                        r = safe_atod(t, &ps->starttime);
+                        if (r < 0)
+                                continue;
+
+                        ps->starttime /= 1000.0;
+
+                        if (arg_show_cgroup)
+                                /* if this fails, that's OK */
+                                cg_pid_get_path(SYSTEMD_CGROUP_CONTROLLER,
+                                                ps->pid, &ps->cgroup);
+
+                        /* ppid */
+                        sprintf(filename, "%d/stat", pid);
+                        fd = openat(procfd, filename, O_RDONLY|O_CLOEXEC);
+                        if (fd < 0)
+                                continue;
+
+                        st = fdopen(fd, "re");
+                        if (!st) {
+                                close(fd);
+                                continue;
+                        }
+
+                        if (!fscanf(st, "%*s %*s %*s %i", &p))
+                                continue;
+
+                        ps->ppid = p;
+
+                        /*
+                         * setup child pointers
+                         *
+                         * these are used to paint the tree coherently later
+                         * each parent has a LL of children, and a LL of siblings
+                         */
+                        if (pid == 1)
+                                continue; /* nothing to do for init atm */
+
+                        /* kthreadd has ppid=0, which breaks our tree ordering */
+                        if (ps->ppid == 0)
+                                ps->ppid = 1;
+
+                        parent = ps_first;
+                        while ((parent->next_ps && parent->pid != ps->ppid))
+                                parent = parent->next_ps;
+
+                        if (parent->pid != ps->ppid) {
+                                /* orphan */
+                                ps->ppid = 1;
+                                parent = ps_first->next_ps;
+                        }
+
+                        ps->parent = parent;
+
+                        if (!parent->children) {
+                                /* it's the first child */
+                                parent->children = ps;
+                        } else {
+                                /* walk all children and append */
+                                struct ps_struct *children;
+                                children = parent->children;
+                                while (children->next)
+                                        children = children->next;
+
+                                children->next = ps;
+                        }
+                }
+
+                /* else -> found pid, append data in ps */
+
+                /* below here is all continuous logging parts - we get here on every
+                 * iteration */
+
+                /* rt, wt */
+                if (ps->schedstat < 0) {
+                        sprintf(filename, "%d/schedstat", pid);
+                        ps->schedstat = openat(procfd, filename, O_RDONLY|O_CLOEXEC);
+                        if (ps->schedstat < 0)
+                                continue;
+                }
+
+                s = pread(ps->schedstat, buf, sizeof(buf) - 1, 0);
+                if (s <= 0) {
+                        /* clean up our file descriptors - assume that the process exited */
+                        close(ps->schedstat);
+                        ps->schedstat = -1;
+                        ps->sched = safe_close(ps->sched);
+                        continue;
+                }
+
+                buf[s] = '\0';
+
+                if (!sscanf(buf, "%s %s %*s", rt, wt))
+                        continue;
+
+                ps->sample->next = new0(struct ps_sched_struct, 1);
+                if (!ps->sample->next)
+                        return log_oom();
+
+                ps->sample->next->prev = ps->sample;
+                ps->sample = ps->sample->next;
+                ps->last = ps->sample;
+                ps->sample->runtime = atoll(rt);
+                ps->sample->waittime = atoll(wt);
+                ps->sample->sampledata = sampledata;
+                ps->sample->ps_new = ps;
+                if (ps_prev)
+                        ps_prev->cross = ps->sample;
+
+                ps_prev = ps->sample;
+                ps->total = (ps->last->runtime - ps->first->runtime)
+                            / 1000000000.0;
+
+                /* Take into account CPU runtime/waittime spent in non-main threads of the process
+                 * by parsing "/proc/[pid]/task/[tid]/schedstat" for all [tid] != [pid]
+                 * See https://github.com/systemd/systemd/issues/139
+                 */
+
+                /* Browse directory "/proc/[pid]/task" to know the thread ids of process [pid] */
+                snprintf(filename, sizeof(filename), PID_FMT "/task", pid);
+                taskfd = openat(procfd, filename, O_RDONLY|O_DIRECTORY|O_CLOEXEC);
+                if (taskfd >= 0) {
+                        _cleanup_closedir_ DIR *taskdir = NULL;
+
+                        taskdir = fdopendir(taskfd);
+                        if (!taskdir) {
+                                safe_close(taskfd);
+                                return -errno;
+                        }
+                        FOREACH_DIRENT(ent, taskdir, break) {
+                                int tid = -1;
+                                _cleanup_close_ int tid_schedstat = -1;
+                                long long delta_rt;
+                                long long delta_wt;
+
+                                if ((ent->d_name[0] < '0') || (ent->d_name[0] > '9'))
+                                        continue;
+
+                                /* Skip main thread as it was already accounted */
+                                r = safe_atoi(ent->d_name, &tid);
+                                if (r < 0 || tid == pid)
+                                        continue;
+
+                                /* Parse "/proc/[pid]/task/[tid]/schedstat" */
+                                snprintf(filename, sizeof(filename), PID_FMT "/schedstat", tid);
+                                tid_schedstat = openat(taskfd, filename, O_RDONLY|O_CLOEXEC);
+
+                                if (tid_schedstat == -1)
+                                        continue;
+
+                                s = pread(tid_schedstat, buf, sizeof(buf) - 1, 0);
+                                if (s <= 0)
+                                        continue;
+                                buf[s] = '\0';
+
+                                if (!sscanf(buf, "%s %s %*s", rt, wt))
+                                        continue;
+
+                                r = safe_atolli(rt, &delta_rt);
+                                if (r < 0)
+                                    continue;
+                                r = safe_atolli(rt, &delta_wt);
+                                if (r < 0)
+                                    continue;
+                                ps->sample->runtime  += delta_rt;
+                                ps->sample->waittime += delta_wt;
+                        }
+                }
+
+                if (!arg_pss)
+                        goto catch_rename;
+
+                /* Pss */
+                if (!ps->smaps) {
+                        sprintf(filename, "%d/smaps", pid);
+                        fd = openat(procfd, filename, O_RDONLY|O_CLOEXEC);
+                        if (fd < 0)
+                                continue;
+                        ps->smaps = fdopen(fd, "re");
+                        if (!ps->smaps) {
+                                close(fd);
+                                continue;
+                        }
+                        setvbuf(ps->smaps, smaps_buf, _IOFBF, sizeof(smaps_buf));
+                } else {
+                        rewind(ps->smaps);
+                }
+
+                /* test to see if we need to skip another field */
+                if (skip == 0) {
+                        if (fgets(buf, sizeof(buf), ps->smaps) == NULL) {
+                                continue;
+                        }
+                        if (fread(buf, 1, 28 * 15, ps->smaps) != (28 * 15)) {
+                                continue;
+                        }
+                        if (buf[392] == 'V') {
+                                skip = 2;
+                        }
+                        else {
+                                skip = 1;
+                        }
+                        rewind(ps->smaps);
+                }
+
+                while (1) {
+                        int pss_kb;
+
+                        /* skip one line, this contains the object mapped. */
+                        if (fgets(buf, sizeof(buf), ps->smaps) == NULL) {
+                                break;
+                        }
+                        /* then there's a 28 char 14 line block */
+                        if (fread(buf, 1, 28 * 14, ps->smaps) != 28 * 14) {
+                                break;
+                        }
+                        pss_kb = atoi(&buf[61]);
+                        ps->sample->pss += pss_kb;
+
+                        /* skip one more line if this is a newer kernel */
+                        if (skip == 2) {
+                               if (fgets(buf, sizeof(buf), ps->smaps) == NULL)
+                                       break;
+                        }
+                }
+
+                if (ps->sample->pss > ps->pss_max)
+                        ps->pss_max = ps->sample->pss;
+
+catch_rename:
+                /* catch process rename, try to randomize time */
+                mod = (arg_hz < 4.0) ? 4.0 : (arg_hz / 4.0);
+                if (((sample - ps->pid) + pid) % (int)(mod) == 0) {
+
+                        /* re-fetch name */
+                        /* get name, start time */
+                        if (ps->sched < 0) {
+                                sprintf(filename, "%d/sched", pid);
+                                ps->sched = openat(procfd, filename, O_RDONLY|O_CLOEXEC);
+                                if (ps->sched < 0)
+                                        continue;
+                        }
+
+                        s = pread(ps->sched, buf, sizeof(buf) - 1, 0);
+                        if (s <= 0) {
+                                /* clean up file descriptors */
+                                ps->sched = safe_close(ps->sched);
+                                ps->schedstat = safe_close(ps->schedstat);
+                                continue;
+                        }
+
+                        buf[s] = '\0';
+
+                        if (!sscanf(buf, "%s %*s %*s", key))
+                                continue;
+
+                        strscpy(ps->name, sizeof(ps->name), key);
+
+                        /* cmdline */
+                        if (arg_show_cmdline)
+                                pid_cmdline_strscpy(procfd, ps->name, sizeof(ps->name), pid);
+                }
+        }
+
+        return 0;
+}
diff --git a/src/systemd-bootchart/store.h b/src/systemd-bootchart/store.h
new file mode 100644
index 0000000000..6e9acf2a6f
--- /dev/null
+++ b/src/systemd-bootchart/store.h
@@ -0,0 +1,36 @@
+#pragma once
+
+/***
+  This file is part of systemd.
+
+  Copyright (C) 2009-2013 Intel Corporation
+
+  Authors:
+    Auke Kok <auke-jan.h.kok@intel.com>
+
+  systemd is free software; you can redistribute it and/or modify it
+  under the terms of the GNU Lesser General Public License as published by
+  the Free Software Foundation; either version 2.1 of the License, or
+  (at your option) any later version.
+
+  systemd is distributed in the hope that it will be useful, but
+  WITHOUT ANY WARRANTY; without even the implied warranty of
+  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+  Lesser General Public License for more details.
+
+  You should have received a copy of the GNU Lesser General Public License
+  along with systemd; If not, see <http://www.gnu.org/licenses/>.
+***/
+
+#include <dirent.h>
+
+#include "bootchart.h"
+
+double gettime_ns(void);
+void log_uptime(void);
+int log_sample(DIR *proc,
+               int sample,
+               struct ps_struct *ps_first,
+               struct list_sample_data **ptr,
+               int *pscount,
+               int *cpus);
diff --git a/src/systemd-bootchart/svg.c b/src/systemd-bootchart/svg.c
new file mode 100644
index 0000000000..f2af535061
--- /dev/null
+++ b/src/systemd-bootchart/svg.c
@@ -0,0 +1,1375 @@
+/***
+  This file is part of systemd.
+
+  Copyright (C) 2009-2013 Intel Corporation
+
+  Authors:
+    Auke Kok <auke-jan.h.kok@intel.com>
+
+  systemd is free software; you can redistribute it and/or modify it
+  under the terms of the GNU Lesser General Public License as published by
+  the Free Software Foundation; either version 2.1 of the License, or
+  (at your option) any later version.
+
+  systemd is distributed in the hope that it will be useful, but
+  WITHOUT ANY WARRANTY; without even the implied warranty of
+  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+  Lesser General Public License for more details.
+
+  You should have received a copy of the GNU Lesser General Public License
+  along with systemd; If not, see <http://www.gnu.org/licenses/>.
+ ***/
+
+#include <fcntl.h>
+#include <limits.h>
+#include <stdio.h>
+#include <string.h>
+#include <sys/utsname.h>
+#include <time.h>
+#include <unistd.h>
+
+#include "alloc-util.h"
+#include "architecture.h"
+#include "bootchart.h"
+#include "fd-util.h"
+#include "fileio.h"
+#include "list.h"
+#include "macro.h"
+#include "stdio-util.h"
+#include "store.h"
+#include "svg.h"
+#include "utf8.h"
+#include "util.h"
+
+#define time_to_graph(t) ((t) * arg_scale_x)
+#define ps_to_graph(n) ((n) * arg_scale_y)
+#define kb_to_graph(m) ((m) * arg_scale_y * 0.0001)
+#define to_color(n) (192.0 - ((n) * 192.0))
+
+static const char * const colorwheel[12] = {
+        "rgb(255,32,32)",  // red
+        "rgb(32,192,192)", // cyan
+        "rgb(255,128,32)", // orange
+        "rgb(128,32,192)", // blue-violet
+        "rgb(255,255,32)", // yellow
+        "rgb(192,32,128)", // red-violet
+        "rgb(32,255,32)",  // green
+        "rgb(255,64,32)",  // red-orange
+        "rgb(32,32,255)",  // blue
+        "rgb(255,192,32)", // yellow-orange
+        "rgb(192,32,192)", // violet
+        "rgb(32,192,32)"   // yellow-green
+};
+
+static double idletime = -1.0;
+static int pfiltered = 0;
+static int pcount = 0;
+static int kcount = 0;
+static double psize = 0;
+static double ksize = 0;
+static double esize = 0;
+static struct list_sample_data *sampledata;
+static struct list_sample_data *prev_sampledata;
+
+static void svg_header(FILE *of, struct list_sample_data *head, double graph_start, int n_cpus) {
+        double w;
+        double h;
+        struct list_sample_data *sampledata_last;
+
+        assert(head);
+
+        sampledata_last = head;
+        LIST_FOREACH_BEFORE(link, sampledata, head) {
+                sampledata_last = sampledata;
+        }
+
+        /* min width is about 1600px due to the label */
+        w = 150.0 + 10.0 + time_to_graph(sampledata_last->sampletime - graph_start);
+        w = ((w < 1600.0) ? 1600.0 : w);
+
+        /* height is variable based on pss, psize, ksize */
+        h = 400.0 + (arg_scale_y * 30.0) /* base graphs and title */
+            + (arg_pss ? (100.0 * arg_scale_y) + (arg_scale_y * 7.0) : 0.0) /* pss estimate */
+            + psize + ksize + esize + (n_cpus * 15 * arg_scale_y);
+
+        fprintf(of, "<?xml version=\"1.0\" standalone=\"no\"?>\n");
+        fprintf(of, "<!DOCTYPE svg PUBLIC \"-//W3C//DTD SVG 1.1//EN\" ");
+        fprintf(of, "\"http://www.w3.org/Graphics/SVG/1.1/DTD/svg11.dtd\">\n");
+
+        //fprintf(of, "<g transform=\"translate(10,%d)\">\n", 1000 + 150 + (pcount * 20));
+        fprintf(of, "<svg width=\"%.0fpx\" height=\"%.0fpx\" version=\"1.1\" ", w, h);
+        fprintf(of, "xmlns=\"http://www.w3.org/2000/svg\">\n\n");
+
+        /* write some basic info as a comment, including some help */
+        fprintf(of, "<!-- This file is a bootchart SVG file. It is best rendered in a browser -->\n");
+        fprintf(of, "<!-- such as Chrome, Chromium, or Firefox. Other applications that       -->\n");
+        fprintf(of, "<!-- render these files properly but more slowly are ImageMagick, gimp,  -->\n");
+        fprintf(of, "<!-- inkscape, etc. To display the files on your system, just point      -->\n");
+        fprintf(of, "<!-- your browser to file:///run/log/ and click. This bootchart was      -->\n\n");
+
+        fprintf(of, "<!-- generated by bootchart version %s, running with options:  -->\n", VERSION);
+        fprintf(of, "<!-- hz=\"%f\" n=\"%d\" -->\n", arg_hz, arg_samples_len);
+        fprintf(of, "<!-- x=\"%f\" y=\"%f\" -->\n", arg_scale_x, arg_scale_y);
+        fprintf(of, "<!-- rel=\"%d\" f=\"%d\" -->\n", arg_relative, arg_filter);
+        fprintf(of, "<!-- p=\"%d\" e=\"%d\" -->\n", arg_pss, arg_entropy);
+        fprintf(of, "<!-- o=\"%s\" i=\"%s\" -->\n\n", arg_output_path, arg_init_path);
+
+        /* style sheet */
+        fprintf(of, "<defs>\n  <style type=\"text/css\">\n    <![CDATA[\n");
+
+        fprintf(of, "      rect       { stroke-width: 1; }\n");
+        fprintf(of, "      rect.bg    { fill: rgb(255,255,255); }\n");
+        fprintf(of, "      rect.cpu   { fill: rgb(64,64,240); stroke-width: 0; fill-opacity: 0.7; }\n");
+        fprintf(of, "      rect.wait  { fill: rgb(240,240,0); stroke-width: 0; fill-opacity: 0.7; }\n");
+        fprintf(of, "      rect.bi    { fill: rgb(240,128,128); stroke-width: 0; fill-opacity: 0.7; }\n");
+        fprintf(of, "      rect.bo    { fill: rgb(192,64,64); stroke-width: 0; fill-opacity: 0.7; }\n");
+        fprintf(of, "      rect.ps    { fill: rgb(192,192,192); stroke: rgb(128,128,128); fill-opacity: 0.7; }\n");
+        fprintf(of, "      rect.krnl  { fill: rgb(240,240,0); stroke: rgb(128,128,128); fill-opacity: 0.7; }\n");
+        fprintf(of, "      rect.box   { fill: rgb(240,240,240); stroke: rgb(192,192,192); }\n");
+        fprintf(of, "      rect.clrw  { stroke-width: 0; fill-opacity: 0.7;}\n");
+        fprintf(of, "      line       { stroke: rgb(64,64,64); stroke-width: 1; }\n");
+        fprintf(of, "//    line.sec1  { }\n");
+        fprintf(of, "      line.sec5  { stroke-width: 2; }\n");
+        fprintf(of, "      line.sec01 { stroke: rgb(224,224,224); stroke-width: 1; }\n");
+        fprintf(of, "      line.dot   { stroke-dasharray: 2 4; }\n");
+        fprintf(of, "      line.idle  { stroke: rgb(64,64,64); stroke-dasharray: 10 6; stroke-opacity: 0.7; }\n");
+
+        fprintf(of, "      .run       { font-size: 8; font-style: italic; }\n");
+        fprintf(of, "      text       { font-family: Verdana, Helvetica; font-size: 10; }\n");
+        fprintf(of, "      text.sec   { font-size: 8; }\n");
+        fprintf(of, "      text.t1    { font-size: 24; }\n");
+        fprintf(of, "      text.t2    { font-size: 12; }\n");
+        fprintf(of, "      text.idle  { font-size: 18; }\n");
+
+        fprintf(of, "    ]]>\n   </style>\n</defs>\n\n");
+}
+
+static int svg_title(FILE *of, const char *build, int pscount, double log_start, int overrun) {
+        _cleanup_free_ char *cmdline = NULL;
+        _cleanup_free_ char *model = NULL;
+        _cleanup_free_ char *buf = NULL;
+        char date[256] = "Unknown";
+        const char *cpu;
+        char *c;
+        time_t t;
+        int r;
+        struct utsname uts;
+
+        r = read_one_line_file("/proc/cmdline", &cmdline);
+        if (r < 0) {
+                log_error_errno(r, "Unable to read cmdline: %m");
+                return r;
+        }
+
+        /* extract root fs so we can find disk model name in sysfs */
+        /* FIXME: this works only in the simple case */
+        c = strstr(cmdline, "root=/dev/");
+        if (c) {
+                char rootbdev[4];
+                char filename[32];
+
+                strncpy(rootbdev, &c[10], sizeof(rootbdev) - 1);
+                rootbdev[3] = '\0';
+                xsprintf(filename, "/sys/block/%s/device/model", rootbdev);
+
+                r = read_one_line_file(filename, &model);
+                if (r < 0)
+                        log_info("Error reading disk model for %s: %m\n", rootbdev);
+        }
+
+        /* various utsname parameters */
+        r = uname(&uts);
+        if (r < 0) {
+                log_error("Error getting uname info\n");
+                return -errno;
+        }
+
+        /* date */
+        t = time(NULL);
+        r = strftime(date, sizeof(date), "%a, %d %b %Y %H:%M:%S %z", localtime(&t));
+        assert_se(r > 0);
+
+        /* CPU type */
+        r = get_proc_field("/proc/cpuinfo", PROC_CPUINFO_MODEL, "\n", &buf);
+        if (r < 0)
+                cpu = "Unknown";
+        else
+                cpu = buf;
+
+        fprintf(of, "<text class=\"t1\" x=\"0\" y=\"30\">Bootchart for %s - %s</text>\n",
+                uts.nodename, date);
+        fprintf(of, "<text class=\"t2\" x=\"20\" y=\"50\">System: %s %s %s %s</text>\n",
+                uts.sysname, uts.release, uts.version, uts.machine);
+        fprintf(of, "<text class=\"t2\" x=\"20\" y=\"65\">CPU: %s</text>\n", cpu);
+        if (model)
+                fprintf(of, "<text class=\"t2\" x=\"20\" y=\"80\">Disk: %s</text>\n", model);
+        fprintf(of, "<text class=\"t2\" x=\"20\" y=\"95\">Boot options: %s</text>\n", cmdline);
+        fprintf(of, "<text class=\"t2\" x=\"20\" y=\"110\">Build: %s</text>\n", build);
+        fprintf(of, "<text class=\"t2\" x=\"20\" y=\"125\">Log start time: %.03fs</text>\n", log_start);
+        fprintf(of, "<text class=\"t2\" x=\"20\" y=\"140\">Idle time: ");
+
+        if (idletime >= 0.0)
+                fprintf(of, "%.03fs", idletime);
+        else
+                fprintf(of, "Not detected");
+
+        fprintf(of, "</text>\n");
+        fprintf(of, "<text class=\"sec\" x=\"20\" y=\"155\">Graph data: %.03f samples/sec, recorded %i total, dropped %i samples, %i processes, %i filtered</text>\n",
+                arg_hz, arg_samples_len, overrun, pscount, pfiltered);
+
+        return 0;
+}
+
+static void svg_graph_box(FILE *of, struct list_sample_data *head, int height, double graph_start) {
+        double d = 0.0;
+        int i = 0;
+        double finalsample = 0.0;
+        struct list_sample_data *sampledata_last;
+
+        sampledata_last = head;
+        LIST_FOREACH_BEFORE(link, sampledata, head) {
+                sampledata_last = sampledata;
+        }
+
+        finalsample = sampledata_last->sampletime;
+
+        /* outside box, fill */
+        fprintf(of, "<rect class=\"box\" x=\"%.03f\" y=\"0\" width=\"%.03f\" height=\"%.03f\" />\n",
+                time_to_graph(0.0),
+                time_to_graph(finalsample - graph_start),
+                ps_to_graph(height));
+
+        for (d = graph_start; d <= finalsample;
+             d += (arg_scale_x < 2.0 ? 60.0 : arg_scale_x < 10.0 ? 1.0 : 0.1)) {
+                /* lines for each second */
+                if (i % 50 == 0)
+                        fprintf(of, "  <line class=\"sec5\" x1=\"%.03f\" y1=\"0\" x2=\"%.03f\" y2=\"%.03f\" />\n",
+                                time_to_graph(d - graph_start),
+                                time_to_graph(d - graph_start),
+                                ps_to_graph(height));
+                else if (i % 10 == 0)
+                        fprintf(of, "  <line class=\"sec1\" x1=\"%.03f\" y1=\"0\" x2=\"%.03f\" y2=\"%.03f\" />\n",
+                                time_to_graph(d - graph_start),
+                                time_to_graph(d - graph_start),
+                                ps_to_graph(height));
+                else
+                        fprintf(of, "  <line class=\"sec01\" x1=\"%.03f\" y1=\"0\" x2=\"%.03f\" y2=\"%.03f\" />\n",
+                                time_to_graph(d - graph_start),
+                                time_to_graph(d - graph_start),
+                                ps_to_graph(height));
+
+                /* time label */
+                if (i % 10 == 0)
+                        fprintf(of, "  <text class=\"sec\" x=\"%.03f\" y=\"%.03f\" >%.01fs</text>\n",
+                                time_to_graph(d - graph_start),
+                                -5.0, d - graph_start);
+
+                i++;
+        }
+}
+
+/* xml comments must not contain "--" */
+static char* xml_comment_encode(const char* name) {
+        char *enc_name, *p;
+
+        enc_name = strdup(name);
+        if (!enc_name)
+                return NULL;
+
+        for (p = enc_name; *p; p++)
+                if (p[0] == '-' && p[1] == '-')
+                        p[1] = '_';
+
+        return enc_name;
+}
+
+static void svg_pss_graph(FILE *of,
+                          struct list_sample_data *head,
+                          struct ps_struct *ps_first,
+                          double graph_start) {
+        struct ps_struct *ps;
+        int i;
+        struct list_sample_data *sampledata_last;
+
+        sampledata_last = head;
+        LIST_FOREACH_BEFORE(link, sampledata, head) {
+                sampledata_last = sampledata;
+        }
+
+
+        fprintf(of, "\n\n<!-- Pss memory size graph -->\n");
+
+        fprintf(of, "\n  <text class=\"t2\" x=\"5\" y=\"-15\">Memory allocation - Pss</text>\n");
+
+        /* vsize 1000 == 1000mb */
+        svg_graph_box(of, head, 100, graph_start);
+        /* draw some hlines for usable memory sizes */
+        for (i = 100000; i < 1000000; i += 100000) {
+                fprintf(of, "  <line class=\"sec01\" x1=\"%.03f\" y1=\"%.0f\" x2=\"%.03f\" y2=\"%.0f\"/>\n",
+                        time_to_graph(.0),
+                        kb_to_graph(i),
+                        time_to_graph(sampledata_last->sampletime - graph_start),
+                        kb_to_graph(i));
+                fprintf(of, "  <text class=\"sec\" x=\"%.03f\" y=\"%.0f\">%dM</text>\n",
+                        time_to_graph(sampledata_last->sampletime - graph_start) + 5,
+                        kb_to_graph(i), (1000000 - i) / 1000);
+        }
+        fprintf(of, "\n");
+
+        /* now plot the graph itself */
+        i = 1;
+        prev_sampledata = head;
+        LIST_FOREACH_BEFORE(link, sampledata, head) {
+                int bottom;
+                int top;
+                struct ps_sched_struct *cross_place;
+
+                bottom = 0;
+                top = 0;
+
+                /* put all the small pss blocks into the bottom */
+                ps = ps_first;
+                while (ps->next_ps) {
+                        ps = ps->next_ps;
+                        if (!ps)
+                                continue;
+                        ps->sample = ps->first;
+                        while (ps->sample->next) {
+                                ps->sample = ps->sample->next;
+                                if (ps->sample->sampledata == sampledata)
+                                        break;
+                        }
+                        if (ps->sample->sampledata == sampledata) {
+                                if (ps->sample->pss <= (100 * arg_scale_y))
+                                        top += ps->sample->pss;
+                                break;
+                        }
+                }
+                while (ps->sample->cross) {
+                        cross_place = ps->sample->cross;
+                        ps = ps->sample->cross->ps_new;
+                        ps->sample = cross_place;
+                        if (ps->sample->pss <= (100 * arg_scale_y))
+                                top += ps->sample->pss;
+                }
+
+                fprintf(of, "    <rect class=\"clrw\" style=\"fill: %s\" x=\"%.03f\" y=\"%.03f\" width=\"%.03f\" height=\"%.03f\" />\n",
+                        "rgb(64,64,64)",
+                        time_to_graph(prev_sampledata->sampletime - graph_start),
+                        kb_to_graph(1000000.0 - top),
+                        time_to_graph(sampledata->sampletime - prev_sampledata->sampletime),
+                        kb_to_graph(top - bottom));
+                bottom = top;
+
+                /* now plot the ones that are of significant size */
+                ps = ps_first;
+                while (ps->next_ps) {
+                        ps = ps->next_ps;
+                        if (!ps)
+                                continue;
+                        ps->sample = ps->first;
+                        while (ps->sample->next) {
+                                ps->sample = ps->sample->next;
+                                if (ps->sample->sampledata == sampledata)
+                                        break;
+                        }
+                        /* don't draw anything smaller than 2mb */
+                        if (ps->sample->sampledata != sampledata)
+                                continue;
+                        if (ps->sample->pss > (100 * arg_scale_y)) {
+                                top = bottom + ps->sample->pss;
+                                fprintf(of, "    <rect class=\"clrw\" style=\"fill: %s\" x=\"%.03f\" y=\"%.03f\" width=\"%.03f\" height=\"%.03f\" />\n",
+                                        colorwheel[ps->pid % 12],
+                                        time_to_graph(prev_sampledata->sampletime - graph_start),
+                                        kb_to_graph(1000000.0 - top),
+                                        time_to_graph(sampledata->sampletime - prev_sampledata->sampletime),
+                                        kb_to_graph(top - bottom));
+                                bottom = top;
+                        }
+                        break;
+                }
+
+                while ((cross_place = ps->sample->cross)) {
+                        ps = ps->sample->cross->ps_new;
+                        ps->sample = cross_place;
+                        if (ps->sample->pss > (100 * arg_scale_y)) {
+                                top = bottom + ps->sample->pss;
+                                fprintf(of, "    <rect class=\"clrw\" style=\"fill: %s\" x=\"%.03f\" y=\"%.03f\" width=\"%.03f\" height=\"%.03f\" />\n",
+                                        colorwheel[ps->pid % 12],
+                                        time_to_graph(prev_sampledata->sampletime - graph_start),
+                                        kb_to_graph(1000000.0 - top),
+                                        time_to_graph(sampledata->sampletime - prev_sampledata->sampletime),
+                                        kb_to_graph(top - bottom));
+                                bottom = top;
+                        }
+                }
+
+                prev_sampledata = sampledata;
+                i++;
+        }
+
+        /* overlay all the text labels */
+        i = 1;
+        LIST_FOREACH_BEFORE(link, sampledata, head) {
+                int bottom;
+                int top = 0;
+                struct ps_sched_struct *prev_sample;
+                struct ps_sched_struct *cross_place;
+
+                /* put all the small pss blocks into the bottom */
+                ps = ps_first->next_ps;
+                while (ps->next_ps) {
+                        ps = ps->next_ps;
+                        if (!ps)
+                                continue;
+
+                        ps->sample = ps->first;
+                        while (ps->sample->next) {
+                                ps->sample = ps->sample->next;
+                                if (ps->sample->sampledata == sampledata)
+                                        break;
+                        }
+
+                        if (ps->sample->sampledata == sampledata) {
+                                if (ps->sample->pss <= (100 * arg_scale_y))
+                                        top += ps->sample->pss;
+
+                                break;
+                        }
+                }
+
+                while ((cross_place = ps->sample->cross)) {
+                        ps = ps->sample->cross->ps_new;
+                        ps->sample = cross_place;
+                        if (ps->sample->pss <= (100 * arg_scale_y))
+                                top += ps->sample->pss;
+                }
+                bottom = top;
+
+                /* now plot the ones that are of significant size */
+                ps = ps_first;
+                while (ps->next_ps) {
+                        prev_sample = ps->sample;
+                        ps = ps->next_ps;
+                        if (!ps)
+                                continue;
+                        ps->sample = ps->first;
+                        while (ps->sample->next) {
+                                prev_sample = ps->sample;
+                                ps->sample = ps->sample->next;
+                                if (ps->sample->sampledata == sampledata)
+                                        break;
+                        }
+                        /* don't draw anything smaller than 2mb */
+                        if (ps->sample->sampledata == sampledata) {
+                                if (ps->sample->pss > (100 * arg_scale_y)) {
+                                        top = bottom + ps->sample->pss;
+                                        /* draw a label with the process / PID */
+                                        if ((i == 1) || (prev_sample->pss <= (100 * arg_scale_y)))
+                                                fprintf(of, "  <text x=\"%.03f\" y=\"%.03f\"><![CDATA[%s]]> [%i]</text>\n",
+                                                        time_to_graph(sampledata->sampletime - graph_start),
+                                                        kb_to_graph(1000000.0 - bottom - ((top -  bottom) / 2)),
+                                                        ps->name, ps->pid);
+                                        bottom = top;
+                                }
+                                break;
+                        }
+                }
+                while ((cross_place = ps->sample->cross)) {
+                        ps = ps->sample->cross->ps_new;
+                        ps->sample = cross_place;
+                        prev_sample = ps->sample->prev;
+                        if (ps->sample->pss > (100 * arg_scale_y)) {
+                                top = bottom + ps->sample->pss;
+                                /* draw a label with the process / PID */
+                                if ((i == 1) || (prev_sample->pss <= (100 * arg_scale_y)))
+                                        fprintf(of, "  <text x=\"%.03f\" y=\"%.03f\"><![CDATA[%s]]> [%i]</text>\n",
+                                                time_to_graph(sampledata->sampletime - graph_start),
+                                                kb_to_graph(1000000.0 - bottom - ((top -  bottom) / 2)),
+                                                ps->name, ps->pid);
+                                bottom = top;
+                        }
+                }
+
+                i++;
+        }
+
+        /* debug output - full data dump */
+        fprintf(of, "\n\n<!-- PSS map - csv format -->\n");
+        ps = ps_first;
+        while (ps->next_ps) {
+                _cleanup_free_ char *enc_name = NULL;
+                ps = ps->next_ps;
+                if (!ps)
+                        continue;
+
+                enc_name = xml_comment_encode(ps->name);
+                if (!enc_name)
+                        continue;
+
+                fprintf(of, "<!-- %s [%d] pss=", enc_name, ps->pid);
+
+                ps->sample = ps->first;
+                while (ps->sample->next) {
+                        ps->sample = ps->sample->next;
+                        fprintf(of, "%d," , ps->sample->pss);
+                }
+
+                fprintf(of, " -->\n");
+        }
+
+}
+
+static void svg_io_bi_bar(FILE *of,
+                          struct list_sample_data *head,
+                          int n_samples,
+                          double graph_start,
+                          double interval) {
+
+        double max = 0.0;
+        double range;
+        int max_here = 0;
+        int i;
+        int k;
+        struct list_sample_data *start_sampledata;
+        struct list_sample_data *stop_sampledata;
+
+        fprintf(of, "<!-- IO utilization graph - In -->\n");
+        fprintf(of, "<text class=\"t2\" x=\"5\" y=\"-15\">IO utilization - read</text>\n");
+
+        /*
+         * calculate rounding range
+         *
+         * We need to round IO data since IO block data is not updated on
+         * each poll. Applying a smoothing function loses some burst data,
+         * so keep the smoothing range short.
+         */
+        range = 0.25 / (1.0 / arg_hz);
+        if (range < 2.0)
+                range = 2.0; /* no smoothing */
+
+        /* surrounding box */
+        svg_graph_box(of, head, 5, graph_start);
+
+        /* find the max IO first */
+        i = 1;
+        LIST_FOREACH_BEFORE(link, sampledata, head) {
+                int start;
+                int stop;
+                int diff;
+                double tot;
+
+                start = MAX(i - ((range / 2) - 1), 0);
+                stop = MIN(i + (range / 2), n_samples - 1);
+                diff = (stop - start);
+
+                start_sampledata = sampledata;
+                stop_sampledata = sampledata;
+
+                for (k = 0; k < ((range/2) - 1) && start_sampledata->link_next; k++)
+                        start_sampledata = start_sampledata->link_next;
+
+                for (k = 0; k < (range/2) && stop_sampledata->link_prev; k++)
+                        stop_sampledata = stop_sampledata->link_prev;
+
+                tot = (double)(stop_sampledata->blockstat.bi - start_sampledata->blockstat.bi) / diff;
+
+                if (tot > max) {
+                        max = tot;
+                        max_here = i;
+                }
+
+                tot = (double)(stop_sampledata->blockstat.bo - start_sampledata->blockstat.bo) / diff;
+
+                if (tot > max)
+                        max = tot;
+
+                i++;
+        }
+
+        /* plot bi */
+        i = 1;
+        prev_sampledata = head;
+        LIST_FOREACH_BEFORE(link, sampledata, head) {
+                int start;
+                int stop;
+                int diff;
+                double tot;
+                double pbi = 0;
+
+                start = MAX(i - ((range / 2) - 1), 0);
+                stop = MIN(i + (range / 2), n_samples);
+                diff = (stop - start);
+
+                start_sampledata = sampledata;
+                stop_sampledata = sampledata;
+
+                for (k = 0; k < ((range/2)-1) && start_sampledata->link_next; k++)
+                        start_sampledata = start_sampledata->link_next;
+
+                for (k = 0; k < (range/2) && stop_sampledata->link_prev; k++)
+                        stop_sampledata = stop_sampledata->link_prev;
+
+                tot = (double)(stop_sampledata->blockstat.bi - start_sampledata->blockstat.bi) / diff;
+
+                if (max > 0)
+                        pbi = tot / max;
+
+                if (pbi > 0.001)
+                        fprintf(of, "<rect class=\"bi\" x=\"%.03f\" y=\"%.03f\" width=\"%.03f\" height=\"%.03f\" />\n",
+                                time_to_graph(prev_sampledata->sampletime - graph_start),
+                                (arg_scale_y * 5) - (pbi * (arg_scale_y * 5)),
+                                time_to_graph(sampledata->sampletime - prev_sampledata->sampletime),
+                                pbi * (arg_scale_y * 5));
+
+                /* labels around highest value */
+                if (i == max_here)
+                        fprintf(of, "  <text class=\"sec\" x=\"%.03f\" y=\"%.03f\">%0.2fmb/sec</text>\n",
+                                time_to_graph(sampledata->sampletime - graph_start) + 5,
+                                ((arg_scale_y * 5) - (pbi * (arg_scale_y * 5))) + 15,
+                                max / 1024.0 / (interval / 1000000000.0));
+
+                i++;
+                prev_sampledata = sampledata;
+        }
+}
+
+static void svg_io_bo_bar(FILE *of,
+                          struct list_sample_data *head,
+                          int n_samples,
+                          double graph_start,
+                          double interval) {
+        double max = 0.0;
+        double range;
+        int max_here = 0;
+        int i;
+        int k;
+        struct list_sample_data *start_sampledata;
+        struct list_sample_data *stop_sampledata;
+
+        fprintf(of, "<!-- IO utilization graph - out -->\n");
+        fprintf(of, "<text class=\"t2\" x=\"5\" y=\"-15\">IO utilization - write</text>\n");
+
+        /*
+         * calculate rounding range
+         *
+         * We need to round IO data since IO block data is not updated on
+         * each poll. Applying a smoothing function loses some burst data,
+         * so keep the smoothing range short.
+         */
+        range = 0.25 / (1.0 / arg_hz);
+        if (range < 2.0)
+                range = 2.0; /* no smoothing */
+
+        /* surrounding box */
+        svg_graph_box(of, head, 5, graph_start);
+
+        /* find the max IO first */
+        i = 0;
+        LIST_FOREACH_BEFORE(link, sampledata, head) {
+                int start;
+                int stop;
+                int diff;
+                double tot;
+
+                start = MAX(i - ((range / 2) - 1), 0);
+                stop = MIN(i + (range / 2), n_samples - 1);
+                diff = (stop - start);
+
+                start_sampledata = sampledata;
+                stop_sampledata = sampledata;
+
+                for (k = 0; k < (range/2) - 1 && start_sampledata->link_next; k++)
+                        start_sampledata = start_sampledata->link_next;
+
+                for (k = 0; k < (range/2) && stop_sampledata->link_prev; k++)
+                        stop_sampledata = stop_sampledata->link_prev;
+
+                tot = (double)(stop_sampledata->blockstat.bi - start_sampledata->blockstat.bi) / diff;
+                if (tot > max)
+                        max = tot;
+
+                tot = (double)(stop_sampledata->blockstat.bo - start_sampledata->blockstat.bo) / diff;
+                if (tot > max) {
+                        max = tot;
+                        max_here = i;
+                }
+
+                i++;
+        }
+
+        /* plot bo */
+        prev_sampledata = head;
+        i = 1;
+
+        LIST_FOREACH_BEFORE(link, sampledata, head) {
+                int start, stop, diff;
+                double tot, pbo;
+
+                pbo = 0;
+
+                start = MAX(i - ((range / 2) - 1), 0);
+                stop = MIN(i + (range / 2), n_samples);
+                diff = (stop - start);
+
+                start_sampledata = sampledata;
+                stop_sampledata = sampledata;
+
+                for (k = 0; k < ((range/2)-1) && start_sampledata->link_next; k++)
+                        start_sampledata = start_sampledata->link_next;
+
+                for (k = 0; k < (range/2) && stop_sampledata->link_prev; k++)
+                        stop_sampledata = stop_sampledata->link_prev;
+
+                tot = (double)(stop_sampledata->blockstat.bo - start_sampledata->blockstat.bo)
+                        / diff;
+
+                if (max > 0)
+                        pbo = tot / max;
+
+                if (pbo > 0.001)
+                        fprintf(of, "<rect class=\"bo\" x=\"%.03f\" y=\"%.03f\" width=\"%.03f\" height=\"%.03f\" />\n",
+                                time_to_graph(prev_sampledata->sampletime - graph_start),
+                                (arg_scale_y * 5) - (pbo * (arg_scale_y * 5)),
+                                time_to_graph(sampledata->sampletime - prev_sampledata->sampletime),
+                                pbo * (arg_scale_y * 5));
+
+                /* labels around highest bo value */
+                if (i == max_here)
+                        fprintf(of, "  <text class=\"sec\" x=\"%.03f\" y=\"%.03f\">%0.2fmb/sec</text>\n",
+                                time_to_graph(sampledata->sampletime - graph_start) + 5,
+                                ((arg_scale_y * 5) - (pbo * (arg_scale_y * 5))),
+                                max / 1024.0 / (interval / 1000000000.0));
+
+                i++;
+                prev_sampledata = sampledata;
+        }
+}
+
+static void svg_cpu_bar(FILE *of, struct list_sample_data *head, int n_cpus, int cpu_num, double graph_start) {
+
+        fprintf(of, "<!-- CPU utilization graph -->\n");
+
+        if (cpu_num < 0)
+                fprintf(of, "<text class=\"t2\" x=\"5\" y=\"-15\">CPU[overall] utilization</text>\n");
+        else
+                fprintf(of, "<text class=\"t2\" x=\"5\" y=\"-15\">CPU[%d] utilization</text>\n", cpu_num);
+
+        /* surrounding box */
+        svg_graph_box(of, head, 5, graph_start);
+
+        /* bars for each sample, proportional to the CPU util. */
+        prev_sampledata = head;
+        LIST_FOREACH_BEFORE(link, sampledata, head) {
+                int c;
+                double trt;
+                double ptrt;
+
+                ptrt = trt = 0.0;
+
+                if (cpu_num < 0)
+                        for (c = 0; c < n_cpus; c++)
+                                trt += sampledata->runtime[c] - prev_sampledata->runtime[c];
+                else
+                        trt = sampledata->runtime[cpu_num] - prev_sampledata->runtime[cpu_num];
+
+                trt = trt / 1000000000.0;
+
+                if (cpu_num < 0)
+                        trt = trt / (double)n_cpus;
+
+                if (trt > 0.0)
+                        ptrt = trt / (sampledata->sampletime - prev_sampledata->sampletime);
+
+                if (ptrt > 1.0)
+                        ptrt = 1.0;
+
+                if (ptrt > 0.001)
+                        fprintf(of, "<rect class=\"cpu\" x=\"%.03f\" y=\"%.03f\" width=\"%.03f\" height=\"%.03f\" />\n",
+                                time_to_graph(prev_sampledata->sampletime - graph_start),
+                                (arg_scale_y * 5) - (ptrt * (arg_scale_y * 5)),
+                                time_to_graph(sampledata->sampletime - prev_sampledata->sampletime),
+                                ptrt * (arg_scale_y * 5));
+
+                prev_sampledata = sampledata;
+        }
+}
+
+static void svg_wait_bar(FILE *of, struct list_sample_data *head, int n_cpus, int cpu_num, double graph_start) {
+
+        fprintf(of, "<!-- Wait time aggregation box -->\n");
+
+        if (cpu_num < 0)
+                fprintf(of, "<text class=\"t2\" x=\"5\" y=\"-15\">CPU[overall] wait</text>\n");
+        else
+                fprintf(of, "<text class=\"t2\" x=\"5\" y=\"-15\">CPU[%d] wait</text>\n", cpu_num);
+
+        /* surrounding box */
+        svg_graph_box(of, head, 5, graph_start);
+
+        /* bars for each sample, proportional to the CPU util. */
+        prev_sampledata = head;
+        LIST_FOREACH_BEFORE(link, sampledata, head) {
+                int c;
+                double twt;
+                double ptwt;
+
+                ptwt = twt = 0.0;
+
+                if (cpu_num < 0)
+                        for (c = 0; c < n_cpus; c++)
+                                twt += sampledata->waittime[c] - prev_sampledata->waittime[c];
+                else
+                        twt = sampledata->waittime[cpu_num] - prev_sampledata->waittime[cpu_num];
+
+                twt = twt / 1000000000.0;
+
+                if (cpu_num < 0)
+                        twt = twt / (double)n_cpus;
+
+                if (twt > 0.0)
+                        ptwt = twt / (sampledata->sampletime - prev_sampledata->sampletime);
+
+                if (ptwt > 1.0)
+                        ptwt = 1.0;
+
+                if (ptwt > 0.001)
+                        fprintf(of, "<rect class=\"wait\" x=\"%.03f\" y=\"%.03f\" width=\"%.03f\" height=\"%.03f\" />\n",
+                                time_to_graph(prev_sampledata->sampletime - graph_start),
+                                ((arg_scale_y * 5) - (ptwt * (arg_scale_y * 5))),
+                                time_to_graph(sampledata->sampletime - prev_sampledata->sampletime),
+                                ptwt * (arg_scale_y * 5));
+
+                prev_sampledata = sampledata;
+        }
+}
+
+static void svg_entropy_bar(FILE *of, struct list_sample_data *head, double graph_start) {
+
+        fprintf(of, "<!-- entropy pool graph -->\n");
+
+        fprintf(of, "<text class=\"t2\" x=\"5\" y=\"-15\">Entropy pool size</text>\n");
+        /* surrounding box */
+        svg_graph_box(of, head, 5, graph_start);
+
+        /* bars for each sample, scale 0-4096 */
+        prev_sampledata = head;
+        LIST_FOREACH_BEFORE(link, sampledata, head) {
+                fprintf(of, "<rect class=\"cpu\" x=\"%.03f\" y=\"%.03f\" width=\"%.03f\" height=\"%.03f\" />\n",
+                        time_to_graph(prev_sampledata->sampletime - graph_start),
+                        ((arg_scale_y * 5) - ((sampledata->entropy_avail / 4096.) * (arg_scale_y * 5))),
+                        time_to_graph(sampledata->sampletime - prev_sampledata->sampletime),
+                        (sampledata->entropy_avail / 4096.) * (arg_scale_y * 5));
+                prev_sampledata = sampledata;
+        }
+}
+
+static struct ps_struct *get_next_ps(struct ps_struct *ps, struct ps_struct *ps_first) {
+        /*
+         * walk the list of processes and return the next one to be
+         * painted
+         */
+        if (ps == ps_first)
+                return ps->next_ps;
+
+        /* go deep */
+        if (ps->children)
+                return ps->children;
+
+        /* find siblings */
+        if (ps->next)
+                return ps->next;
+
+        /* go back for parent siblings */
+        for (;;) {
+                if (ps->parent && ps->parent->next)
+                        return ps->parent->next;
+
+                ps = ps->parent;
+                if (!ps)
+                        return ps;
+        }
+
+        return NULL;
+}
+
+static bool ps_filter(struct ps_struct *ps) {
+        if (!arg_filter)
+                return false;
+
+        /* can't draw data when there is only 1 sample (need start + stop) */
+        if (ps->first == ps->last)
+                return true;
+
+        /* don't filter kthreadd */
+        if (ps->pid == 2)
+                return false;
+
+        /* drop stuff that doesn't use any real CPU time */
+        if (ps->total <= 0.001)
+                return true;
+
+        return 0;
+}
+
+static void svg_do_initcall(FILE *of, struct list_sample_data *head, int count_only, double graph_start) {
+        _cleanup_pclose_ FILE *f = NULL;
+        double t;
+        char func[256];
+        int ret;
+        int usecs;
+
+        /* can't plot initcall when disabled or in relative mode */
+        if (!arg_initcall || arg_relative) {
+                kcount = 0;
+                return;
+        }
+
+        if (!count_only) {
+                fprintf(of, "<!-- initcall -->\n");
+                fprintf(of, "<text class=\"t2\" x=\"5\" y=\"-15\">Kernel init threads</text>\n");
+                /* surrounding box */
+                svg_graph_box(of, head, kcount, graph_start);
+        }
+
+        kcount = 0;
+
+        /*
+         * Initcall graphing - parses dmesg buffer and displays kernel threads
+         * This somewhat uses the same methods and scaling to show processes
+         * but looks a lot simpler. It's overlaid entirely onto the PS graph
+         * when appropriate.
+         */
+
+        f = popen("dmesg", "r");
+        if (!f)
+                return;
+
+        while (!feof(f)) {
+                int c;
+                int z = 0;
+                char l[256];
+
+                if (fgets(l, sizeof(l) - 1, f) == NULL)
+                        continue;
+
+                c = sscanf(l, "[%lf] initcall %s %*s %d %*s %d %*s",
+                           &t, func, &ret, &usecs);
+                if (c != 4) {
+                        /* also parse initcalls done by module loading */
+                        c = sscanf(l, "[%lf] initcall %s %*s %*s %d %*s %d %*s",
+                                   &t, func, &ret, &usecs);
+                        if (c != 4)
+                                continue;
+                }
+
+                /* chop the +0xXX/0xXX stuff */
+                while(func[z] != '+')
+                        z++;
+                func[z] = 0;
+
+                if (count_only) {
+                        /* filter out irrelevant stuff */
+                        if (usecs >= 1000)
+                                kcount++;
+                        continue;
+                }
+
+                fprintf(of, "<!-- thread=\"%s\" time=\"%.3f\" elapsed=\"%d\" result=\"%d\" -->\n",
+                        func, t, usecs, ret);
+
+                if (usecs < 1000)
+                        continue;
+
+                /* rect */
+                fprintf(of, "  <rect class=\"krnl\" x=\"%.03f\" y=\"%.03f\" width=\"%.03f\" height=\"%.03f\" />\n",
+                        time_to_graph(t - (usecs / 1000000.0)),
+                        ps_to_graph(kcount),
+                        time_to_graph(usecs / 1000000.0),
+                        ps_to_graph(1));
+
+                /* label */
+                fprintf(of, "  <text x=\"%.03f\" y=\"%.03f\">%s <tspan class=\"run\">%.03fs</tspan></text>\n",
+                        time_to_graph(t - (usecs / 1000000.0)) + 5,
+                        ps_to_graph(kcount) + 15,
+                        func, usecs / 1000000.0);
+
+                kcount++;
+        }
+}
+
+static void svg_ps_bars(FILE *of,
+                        struct list_sample_data *head,
+                        int n_samples,
+                        int n_cpus,
+                        struct ps_struct *ps_first,
+                        double graph_start,
+                        double interval) {
+
+        struct ps_struct *ps;
+        int i = 0;
+        int j = 0;
+        int pid;
+        double w = 0.0;
+
+        fprintf(of, "<!-- Process graph -->\n");
+        fprintf(of, "<text class=\"t2\" x=\"5\" y=\"-15\">Processes</text>\n");
+
+        /* surrounding box */
+        svg_graph_box(of, head, pcount, graph_start);
+
+        /* pass 2 - ps boxes */
+        ps = ps_first;
+        while ((ps = get_next_ps(ps, ps_first))) {
+                _cleanup_free_ char *enc_name = NULL, *escaped = NULL;
+                double endtime;
+                double starttime;
+                int t;
+
+                if (!utf8_is_printable(ps->name, strlen(ps->name)))
+                        escaped = utf8_escape_non_printable(ps->name);
+
+                enc_name = xml_comment_encode(escaped ? escaped : ps->name);
+                if (!enc_name)
+                        continue;
+
+                /* leave some trace of what we actually filtered etc. */
+                fprintf(of, "<!-- %s [%i] ppid=%i runtime=%.03fs -->\n", enc_name, ps->pid,
+                        ps->ppid, ps->total);
+
+                starttime = ps->first->sampledata->sampletime;
+
+                if (!ps_filter(ps)) {
+                        /* remember where _to_ our children need to draw a line */
+                        ps->pos_x = time_to_graph(starttime - graph_start);
+                        ps->pos_y = ps_to_graph(j+1); /* bottom left corner */
+                } else if (ps->parent){
+                        /* hook children to our parent coords instead */
+                        ps->pos_x = ps->parent->pos_x;
+                        ps->pos_y = ps->parent->pos_y;
+
+                        /* if this is the last child, we might still need to draw a connecting line */
+                        if ((!ps->next) && (ps->parent))
+                                fprintf(of, "  <line class=\"dot\" x1=\"%.03f\" y1=\"%.03f\" x2=\"%.03f\" y2=\"%.03f\" />\n",
+                                        ps->parent->pos_x,
+                                        ps_to_graph(j-1) + 10.0, /* whee, use the last value here */
+                                        ps->parent->pos_x,
+                                        ps->parent->pos_y);
+                        continue;
+                }
+
+                endtime = ps->last->sampledata->sampletime;
+                fprintf(of, "  <rect class=\"ps\" x=\"%.03f\" y=\"%.03f\" width=\"%.03f\" height=\"%.03f\" />\n",
+                        time_to_graph(starttime - graph_start),
+                        ps_to_graph(j),
+                        time_to_graph(ps->last->sampledata->sampletime - starttime),
+                        ps_to_graph(1));
+
+                /* paint cpu load over these */
+                ps->sample = ps->first;
+                t = 1;
+                while (ps->sample->next) {
+                        double rt, prt;
+                        double wt, wrt;
+                        struct ps_sched_struct *prev;
+
+                        prev = ps->sample;
+                        ps->sample = ps->sample->next;
+
+                        /* calculate over interval */
+                        rt = ps->sample->runtime - prev->runtime;
+                        wt = ps->sample->waittime - prev->waittime;
+
+                        prt = (rt / 1000000000) / (ps->sample->sampledata->sampletime - prev->sampledata->sampletime);
+                        wrt = (wt / 1000000000) / (ps->sample->sampledata->sampletime - prev->sampledata->sampletime);
+
+                        /* this can happen if timekeeping isn't accurate enough */
+                        if (prt > 1.0)
+                                prt = 1.0;
+                        if (wrt > 1.0)
+                                wrt = 1.0;
+
+                        if ((prt < 0.1) && (wrt < 0.1)) /* =~ 26 (color threshold) */
+                                continue;
+
+                        fprintf(of, "    <rect class=\"wait\" x=\"%.03f\" y=\"%.03f\" width=\"%.03f\" height=\"%.03f\" />\n",
+                                time_to_graph(prev->sampledata->sampletime - graph_start),
+                                ps_to_graph(j),
+                                time_to_graph(ps->sample->sampledata->sampletime - prev->sampledata->sampletime),
+                                ps_to_graph(wrt));
+
+                        /* draw cpu over wait - TODO figure out how/why run + wait > interval */
+                        fprintf(of, "    <rect class=\"cpu\" x=\"%.03f\" y=\"%.03f\" width=\"%.03f\" height=\"%.03f\" />\n",
+                                time_to_graph(prev->sampledata->sampletime - graph_start),
+                                ps_to_graph(j + (1.0 - prt)),
+                                time_to_graph(ps->sample->sampledata->sampletime - prev->sampledata->sampletime),
+                                ps_to_graph(prt));
+                        t++;
+                }
+
+                /* determine where to display the process name */
+                if ((endtime - starttime) < 1.5)
+                        /* too small to fit label inside the box */
+                        w = endtime;
+                else
+                        w = starttime;
+
+                /* text label of process name */
+                fprintf(of, "  <text x=\"%.03f\" y=\"%.03f\"><![CDATA[%s]]> [%i]<tspan class=\"run\">%.03fs</tspan> %s</text>\n",
+                        time_to_graph(w - graph_start) + 5.0,
+                        ps_to_graph(j) + 14.0,
+                        escaped ? escaped : ps->name,
+                        ps->pid,
+                        (ps->last->runtime - ps->first->runtime) / 1000000000.0,
+                        arg_show_cgroup ? ps->cgroup : "");
+                /* paint lines to the parent process */
+                if (ps->parent) {
+                        /* horizontal part */
+                        fprintf(of, "  <line class=\"dot\" x1=\"%.03f\" y1=\"%.03f\" x2=\"%.03f\" y2=\"%.03f\" />\n",
+                                time_to_graph(starttime - graph_start),
+                                ps_to_graph(j) + 10.0,
+                                ps->parent->pos_x,
+                                ps_to_graph(j) + 10.0);
+
+                        /* one vertical line connecting all the horizontal ones up */
+                        if (!ps->next)
+                                fprintf(of, "  <line class=\"dot\" x1=\"%.03f\" y1=\"%.03f\" x2=\"%.03f\" y2=\"%.03f\" />\n",
+                                        ps->parent->pos_x,
+                                        ps_to_graph(j) + 10.0,
+                                        ps->parent->pos_x,
+                                        ps->parent->pos_y);
+                }
+
+                j++; /* count boxes */
+
+                fprintf(of, "\n");
+        }
+
+        /* last pass - determine when idle */
+        pid = getpid();
+        /* make sure we start counting from the point where we actually have
+         * data: assume that bootchart's first sample is when data started
+         */
+
+        ps = ps_first;
+        while (ps->next_ps) {
+                ps = ps->next_ps;
+                if (ps->pid == pid)
+                        break;
+        }
+
+        /* need to know last node first */
+        ps->sample = ps->first;
+        i = ps->sample->next->sampledata->counter;
+
+        while (ps->sample->next && i<(n_samples-(arg_hz/2))) {
+                double crt;
+                double brt;
+                int c;
+                int ii;
+                struct ps_sched_struct *sample_hz;
+
+                ps->sample = ps->sample->next;
+                sample_hz = ps->sample;
+                for (ii = 0; (ii < (int)arg_hz/2) && sample_hz->next; ii++)
+                        sample_hz = sample_hz->next;
+
+                /* subtract bootchart cpu utilization from total */
+                crt = 0.0;
+                for (c = 0; c < n_cpus; c++)
+                        crt += sample_hz->sampledata->runtime[c] - ps->sample->sampledata->runtime[c];
+
+                brt = sample_hz->runtime - ps->sample->runtime;
+                /*
+                 * our definition of "idle":
+                 *
+                 * if for (hz / 2) we've used less CPU than (interval / 2) ...
+                 * defaults to 4.0%, which experimentally, is where atom idles
+                 */
+                if ((crt - brt) < (interval / 2.0)) {
+                        idletime = ps->sample->sampledata->sampletime - graph_start;
+                        fprintf(of, "\n<!-- idle detected at %.03f seconds -->\n", idletime);
+                        fprintf(of, "<line class=\"idle\" x1=\"%.03f\" y1=\"%.03f\" x2=\"%.03f\" y2=\"%.03f\" />\n",
+                                time_to_graph(idletime),
+                                -arg_scale_y,
+                                time_to_graph(idletime),
+                                ps_to_graph(pcount) + arg_scale_y);
+                        fprintf(of, "<text class=\"idle\" x=\"%.03f\" y=\"%.03f\">%.01fs</text>\n",
+                                time_to_graph(idletime) + 5.0,
+                                ps_to_graph(pcount) + arg_scale_y,
+                                idletime);
+                        break;
+                }
+
+                i++;
+        }
+}
+
+static void svg_top_ten_cpu(FILE *of, struct ps_struct *ps_first) {
+        struct ps_struct *top[10];
+        struct ps_struct emptyps = {};
+        struct ps_struct *ps;
+        int n, m;
+
+        for (n = 0; n < (int) ELEMENTSOF(top); n++)
+                top[n] = &emptyps;
+
+        /* walk all ps's and setup ptrs */
+        ps = ps_first;
+        while ((ps = get_next_ps(ps, ps_first))) {
+                for (n = 0; n < 10; n++) {
+                        if (ps->total <= top[n]->total)
+                                continue;
+                        /* cascade insert */
+                        for (m = 9; m > n; m--)
+                                top[m] = top[m-1];
+                        top[n] = ps;
+                        break;
+                }
+        }
+
+        fprintf(of, "<text class=\"t2\" x=\"20\" y=\"0\">Top CPU consumers:</text>\n");
+        for (n = 0; n < 10; n++)
+                fprintf(of, "<text class=\"t3\" x=\"20\" y=\"%d\">%3.03fs - <![CDATA[%s]]> [%d]</text>\n",
+                        20 + (n * 13),
+                        top[n]->total,
+                        top[n]->name,
+                        top[n]->pid);
+}
+
+static void svg_top_ten_pss(FILE *of, struct ps_struct *ps_first) {
+        struct ps_struct *top[10];
+        struct ps_struct emptyps = {};
+        struct ps_struct *ps;
+        int n, m;
+
+        for (n = 0; n < (int) ELEMENTSOF(top); n++)
+                top[n] = &emptyps;
+
+        /* walk all ps's and setup ptrs */
+        ps = ps_first;
+        while ((ps = get_next_ps(ps, ps_first))) {
+                for (n = 0; n < 10; n++) {
+                        if (ps->pss_max <= top[n]->pss_max)
+                                continue;
+
+                        /* cascade insert */
+                        for (m = 9; m > n; m--)
+                                top[m] = top[m-1];
+                        top[n] = ps;
+                        break;
+                }
+        }
+
+        fprintf(of, "<text class=\"t2\" x=\"20\" y=\"0\">Top PSS consumers:</text>\n");
+        for (n = 0; n < 10; n++)
+                fprintf(of, "<text class=\"t3\" x=\"20\" y=\"%d\">%dK - <![CDATA[%s]]> [%d]</text>\n",
+                        20 + (n * 13),
+                        top[n]->pss_max,
+                        top[n]->name,
+                        top[n]->pid);
+}
+
+int svg_do(FILE *of,
+           const char *build,
+           struct list_sample_data *head,
+           struct ps_struct *ps_first,
+           int n_samples,
+           int pscount,
+           int n_cpus,
+           double graph_start,
+           double log_start,
+           double interval,
+           int overrun) {
+
+        struct ps_struct *ps;
+        double offset = 7;
+        int r, c;
+
+        sampledata = head;
+        LIST_FIND_TAIL(link, sampledata, head);
+        ps = ps_first;
+
+        /* count initcall thread count first */
+        svg_do_initcall(of, head, 1, graph_start);
+        ksize = kcount ? ps_to_graph(kcount) + (arg_scale_y * 2) : 0;
+
+        /* then count processes */
+        while ((ps = get_next_ps(ps, ps_first))) {
+                if (!ps_filter(ps))
+                        pcount++;
+                else
+                        pfiltered++;
+        }
+        psize = ps_to_graph(pcount) + (arg_scale_y * 2);
+
+        esize = (arg_entropy ? arg_scale_y * 7 : 0);
+
+        /* after this, we can draw the header with proper sizing */
+        svg_header(of, head, graph_start, arg_percpu ? n_cpus : 0);
+        fprintf(of, "<rect class=\"bg\" width=\"100%%\" height=\"100%%\" />\n\n");
+
+        fprintf(of, "<g transform=\"translate(10,400)\">\n");
+        svg_io_bi_bar(of, head, n_samples, graph_start, interval);
+        fprintf(of, "</g>\n\n");
+
+        fprintf(of, "<g transform=\"translate(10,%.03f)\">\n", 400.0 + (arg_scale_y * offset));
+        svg_io_bo_bar(of, head, n_samples, graph_start, interval);
+        fprintf(of, "</g>\n\n");
+
+        for (c = -1; c < (arg_percpu ? n_cpus : 0); c++) {
+                offset += 7;
+                fprintf(of, "<g transform=\"translate(10,%.03f)\">\n", 400.0 + (arg_scale_y * offset));
+                svg_cpu_bar(of, head, n_cpus, c, graph_start);
+                fprintf(of, "</g>\n\n");
+
+                offset += 7;
+                fprintf(of, "<g transform=\"translate(10,%.03f)\">\n", 400.0 + (arg_scale_y * offset));
+                svg_wait_bar(of, head, n_cpus, c, graph_start);
+                fprintf(of, "</g>\n\n");
+        }
+
+        if (kcount) {
+                offset += 7;
+                fprintf(of, "<g transform=\"translate(10,%.03f)\">\n", 400.0 + (arg_scale_y * offset));
+                svg_do_initcall(of, head, 0, graph_start);
+                fprintf(of, "</g>\n\n");
+        }
+
+        offset += 7;
+        fprintf(of, "<g transform=\"translate(10,%.03f)\">\n", 400.0 + (arg_scale_y * offset) + ksize);
+        svg_ps_bars(of, head, n_samples, n_cpus, ps_first, graph_start, interval);
+        fprintf(of, "</g>\n\n");
+
+        fprintf(of, "<g transform=\"translate(10,  0)\">\n");
+        r = svg_title(of, build, pscount, log_start, overrun);
+        fprintf(of, "</g>\n\n");
+
+        if (r < 0)
+                return r;
+
+        fprintf(of, "<g transform=\"translate(10,200)\">\n");
+        svg_top_ten_cpu(of, ps_first);
+        fprintf(of, "</g>\n\n");
+
+        if (arg_entropy) {
+                fprintf(of, "<g transform=\"translate(10,%.03f)\">\n", 400.0 + (arg_scale_y * offset) + ksize + psize);
+                svg_entropy_bar(of, head, graph_start);
+                fprintf(of, "</g>\n\n");
+        }
+
+        if (arg_pss) {
+                fprintf(of, "<g transform=\"translate(10,%.03f)\">\n", 400.0 + (arg_scale_y * offset) + ksize + psize + esize);
+                svg_pss_graph(of, head, ps_first, graph_start);
+                fprintf(of, "</g>\n\n");
+
+                fprintf(of, "<g transform=\"translate(410,200)\">\n");
+                svg_top_ten_pss(of, ps_first);
+                fprintf(of, "</g>\n\n");
+        }
+
+        /* fprintf footer */
+        fprintf(of, "\n</svg>\n");
+
+        return 0;
+}
diff --git a/src/systemd-bootchart/svg.h b/src/systemd-bootchart/svg.h
new file mode 100644
index 0000000000..6e06b5ad97
--- /dev/null
+++ b/src/systemd-bootchart/svg.h
@@ -0,0 +1,35 @@
+#pragma once
+
+/***
+  This file is part of systemd.
+
+  Copyright (C) 2009-2013 Intel Corporation
+
+  Authors:
+    Auke Kok <auke-jan.h.kok@intel.com>
+
+  systemd is free software; you can redistribute it and/or modify it
+  under the terms of the GNU Lesser General Public License as published by
+  the Free Software Foundation; either version 2.1 of the License, or
+  (at your option) any later version.
+
+  systemd is distributed in the hope that it will be useful, but
+  WITHOUT ANY WARRANTY; without even the implied warranty of
+  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+  Lesser General Public License for more details.
+
+  You should have received a copy of the GNU Lesser General Public License
+  along with systemd; If not, see <http://www.gnu.org/licenses/>.
+***/
+
+int svg_do(FILE *of,
+           const char *build,
+           struct list_sample_data *head,
+           struct ps_struct *ps_first,
+           int n_samples,
+           int pscount,
+           int n_cpus,
+           double graph_start,
+           double log_start,
+           double interval,
+           int overrun);