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-rw-r--r--src/analyze/systemd-analyze.c624
1 files changed, 624 insertions, 0 deletions
diff --git a/src/analyze/systemd-analyze.c b/src/analyze/systemd-analyze.c
new file mode 100644
index 0000000000..1ea56c6896
--- /dev/null
+++ b/src/analyze/systemd-analyze.c
@@ -0,0 +1,624 @@
+/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
+
+/***
+ This file is part of systemd.
+
+ Copyright 2010 Lennart Poettering
+
+ 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 <stdio.h>
+#include <stdlib.h>
+#include <getopt.h>
+#include <locale.h>
+#include <sys/utsname.h>
+
+#include "install.h"
+#include "log.h"
+#include "dbus-common.h"
+#include "build.h"
+#include "util.h"
+#include "strxcpyx.h"
+
+#define compare(a, b) (((a) > (b))? 1 : (((b) > (a))? -1 : 0))
+#define svg(...) printf(__VA_ARGS__)
+#define svg_bar(class, x1, x2, y) \
+ svg(" <rect class=\"%s\" x=\"%.03f\" y=\"%.03f\" width=\"%.03f\" height=\"%.03f\" />\n", \
+ (class), \
+ scale_x * (x1), scale_y * (y), \
+ scale_x * ((x2) - (x1)), scale_y - 1.0)
+#define svg_text(x, y, format, ...) do {\
+ svg(" <text x=\"%.03f\" y=\"%.03f\">", scale_x * (x) + 5.0, scale_y * (y) + 14.0); \
+ svg(format, ## __VA_ARGS__); \
+ svg("</text>\n"); \
+ } while(false)
+
+static UnitFileScope arg_scope = UNIT_FILE_SYSTEM;
+
+double scale_x = 0.1; // pixels per ms
+double scale_y = 20.0;
+
+struct boot_times {
+ uint64_t firmware_time;
+ uint64_t loader_time;
+ uint64_t kernel_time;
+ uint64_t kernel_done_time;
+ uint64_t initrd_time;
+ uint64_t userspace_time;
+ uint64_t finish_time;
+};
+struct unit_times {
+ char *name;
+ uint64_t ixt;
+ uint64_t iet;
+ uint64_t axt;
+ uint64_t aet;
+ uint64_t time;
+};
+
+static int bus_get_uint64_property (DBusConnection *bus, const char *path, const char *interface, const char *property, uint64_t *val)
+{
+ _cleanup_dbus_message_unref_ DBusMessage *reply = NULL;
+ int r;
+ DBusMessageIter iter, sub;
+
+ r = bus_method_call_with_reply (
+ bus,
+ "org.freedesktop.systemd1",
+ path,
+ "org.freedesktop.DBus.Properties",
+ "Get",
+ &reply,
+ NULL,
+ DBUS_TYPE_STRING, &interface,
+ DBUS_TYPE_STRING, &property,
+ DBUS_TYPE_INVALID);
+ if (r < 0)
+ return r;
+
+ if (!dbus_message_iter_init(reply, &iter) ||
+ dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_VARIANT) {
+ log_error("Failed to parse reply.");
+ return -EIO;
+ }
+
+ dbus_message_iter_recurse(&iter, &sub);
+
+ if (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_UINT64) {
+ log_error("Failed to parse reply.");
+ return -EIO;
+ }
+
+ dbus_message_iter_get_basic(&sub, val);
+
+ return 0;
+}
+
+static int compare_unit_time(const void *a, const void *b)
+{
+ return compare(((struct unit_times *)b)->time,
+ ((struct unit_times *)a)->time);
+}
+
+static int compare_unit_start(const void *a, const void *b)
+{
+ return compare(((struct unit_times *)a)->ixt,
+ ((struct unit_times *)b)->ixt);
+}
+
+static char *get_os_name(void)
+{
+ char *n = NULL;
+
+ parse_env_file("/etc/os-release", NEWLINE, "PRETTY_NAME", &n, NULL);
+ return n;
+}
+
+static int acquire_time_data(DBusConnection *bus, struct unit_times **out)
+{
+ _cleanup_dbus_message_unref_ DBusMessage *reply = NULL;
+ DBusMessageIter iter, sub;
+ int r, c = 0, n_units = 0;
+ struct unit_times *unit_times = NULL;
+
+ r = bus_method_call_with_reply (
+ bus,
+ "org.freedesktop.systemd1",
+ "/org/freedesktop/systemd1",
+ "org.freedesktop.systemd1.Manager",
+ "ListUnits",
+ &reply,
+ NULL,
+ DBUS_TYPE_INVALID);
+ if (r)
+ goto fail;
+
+ if (!dbus_message_iter_init(reply, &iter) ||
+ dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_ARRAY ||
+ dbus_message_iter_get_element_type(&iter) != DBUS_TYPE_STRUCT) {
+ log_error("Failed to parse reply.");
+ r = -EIO;
+ goto fail;
+ }
+
+ for (dbus_message_iter_recurse(&iter, &sub);
+ dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_INVALID;
+ dbus_message_iter_next(&sub)) {
+ struct unit_info u;
+ struct unit_times *t;
+
+ if (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_STRUCT) {
+ log_error("Failed to parse reply.");
+ r = -EIO;
+ goto fail;
+ }
+
+ if (c >= n_units) {
+ struct unit_times *w;
+
+ n_units = MAX(2*c, 16);
+ w = realloc(unit_times, sizeof(struct unit_times) * n_units);
+
+ if (!w) {
+ r = log_oom();
+ goto fail;
+ }
+
+ unit_times = w;
+ }
+ t = unit_times+c;
+ t->name = NULL;
+
+ r = bus_parse_unit_info(&sub, &u);
+ if (r < 0)
+ goto fail;
+
+ if (bus_get_uint64_property(bus, u.unit_path,
+ "org.freedesktop.systemd1.Unit",
+ "InactiveExitTimestampMonotonic",
+ &t->ixt) < 0 ||
+ bus_get_uint64_property(bus, u.unit_path,
+ "org.freedesktop.systemd1.Unit",
+ "ActiveEnterTimestampMonotonic",
+ &t->aet) < 0 ||
+ bus_get_uint64_property(bus, u.unit_path,
+ "org.freedesktop.systemd1.Unit",
+ "ActiveExitTimestampMonotonic",
+ &t->axt) < 0 ||
+ bus_get_uint64_property(bus, u.unit_path,
+ "org.freedesktop.systemd1.Unit",
+ "InactiveEnterTimestampMonotonic",
+ &t->iet) < 0) {
+ r = -EIO;
+ goto fail;
+ }
+
+ t->iet /= 1000;
+ t->ixt /= 1000;
+ t->aet /= 1000;
+ t->axt /= 1000;
+
+ if (t->aet >= t->ixt)
+ t->time = t->aet - t->ixt;
+ else if (t->iet >= t->ixt)
+ t->time = t->iet - t->ixt;
+ else
+ t->time = 0;
+
+ if (t->ixt == 0)
+ continue;
+
+ t->name = strdup(u.id);
+ if (t->name == NULL) {
+ r = log_oom();
+ goto fail;
+ }
+ c++;
+ }
+
+ *out = unit_times;
+ return c;
+fail:
+ for (; c >= 0; c--)
+ free(unit_times[c].name);
+ free(unit_times);
+ return r;
+}
+
+static struct boot_times *acquire_boot_times(DBusConnection *bus)
+{
+ static struct boot_times times;
+ static bool cached = false;
+ if (cached)
+ return &times;
+
+ if (bus_get_uint64_property(bus,
+ "/org/freedesktop/systemd1",
+ "org.freedesktop.systemd1.Manager",
+ "FirmwareTimestampMonotonic",
+ &times.firmware_time) < 0 ||
+ bus_get_uint64_property(bus,
+ "/org/freedesktop/systemd1",
+ "org.freedesktop.systemd1.Manager",
+ "LoaderTimestampMonotonic",
+ &times.loader_time) < 0 ||
+ bus_get_uint64_property(bus,
+ "/org/freedesktop/systemd1",
+ "org.freedesktop.systemd1.Manager",
+ "KernelTimestamp",
+ &times.kernel_time) < 0 ||
+ bus_get_uint64_property(bus,
+ "/org/freedesktop/systemd1",
+ "org.freedesktop.systemd1.Manager",
+ "InitRDTimestampMonotonic",
+ &times.initrd_time) < 0 ||
+ bus_get_uint64_property(bus,
+ "/org/freedesktop/systemd1",
+ "org.freedesktop.systemd1.Manager",
+ "UserspaceTimestampMonotonic",
+ &times.userspace_time) < 0 ||
+ bus_get_uint64_property(bus,
+ "/org/freedesktop/systemd1",
+ "org.freedesktop.systemd1.Manager",
+ "FinishTimestampMonotonic",
+ &times.finish_time) < 0)
+ return NULL;
+
+ if (!times.finish_time) {
+ log_error("Bootup is not yet finished. Please try again later.");
+ return NULL;
+ }
+
+ times.firmware_time /= 1000;
+ times.loader_time /= 1000;
+ times.initrd_time /= 1000;
+ times.userspace_time /= 1000;
+ times.finish_time /= 1000;
+
+ if (times.initrd_time)
+ times.kernel_done_time = times.initrd_time;
+ else
+ times.kernel_done_time = times.userspace_time;
+
+ cached = true;
+ return &times;
+}
+
+static char *pretty_boot_time(DBusConnection *bus)
+{
+ struct boot_times *t;
+ size_t size = 4096;
+ static char buf[4096];
+ char *ptr = buf;
+
+ t = acquire_boot_times(bus);
+ if (!t)
+ return NULL;
+
+ size = strpcpyf(&ptr, size, "Startup finished in ");
+ if (t->firmware_time)
+ size = strpcpyf(&ptr, size, "%llums (firmware) + ", (unsigned long long)(t->firmware_time - t->loader_time));
+ if (t->loader_time)
+ size = strpcpyf(&ptr, size, "%llums (loader) + ", (unsigned long long)t->loader_time);
+ if (t->kernel_time)
+ size = strpcpyf(&ptr, size, "%llums (kernel) + ", (unsigned long long)t->kernel_done_time);
+ if (t->initrd_time > 0)
+ size = strpcpyf(&ptr, size, "%llums (initrd) + ", (unsigned long long)(t->userspace_time - t->initrd_time));
+
+ size = strpcpyf(&ptr, size, "%llums (userspace) ", (unsigned long long)(t->finish_time - t->userspace_time));
+ if (t->kernel_time > 0)
+ size = strpcpyf(&ptr, size, "= %llums", (unsigned long long)(t->firmware_time + t->finish_time));
+ else
+ size = strpcpyf(&ptr, size, "= %llums", (unsigned long long)(t->finish_time - t->userspace_time));
+
+ return buf;
+}
+
+static void svg_graph_box(int height, int64_t begin, int64_t end)
+{
+ /* outside box, fill */
+ svg("<rect class=\"box\" x=\"0\" y=\"0\" width=\"%.03f\" height=\"%.03f\" />\n",
+ scale_x * (end - begin), scale_y * height);
+
+ for (int i = (begin / 100) * 100; i <= end; i+=100) {
+ /* lines for each second */
+ if (i % 5000 == 0)
+ svg(" <line class=\"sec5\" x1=\"%.03f\" y1=\"0\" x2=\"%.03f\" y2=\"%.03f\" />\n"
+ " <text class=\"sec\" x=\"%.03f\" y=\"%.03f\" >%.01fs</text>\n",
+ scale_x * i, scale_x * i, scale_y * height, scale_x * i, -5.0, 0.001 * i);
+ else if (i % 1000 == 0)
+ svg(" <line class=\"sec1\" x1=\"%.03f\" y1=\"0\" x2=\"%.03f\" y2=\"%.03f\" />\n"
+ " <text class=\"sec\" x=\"%.03f\" y=\"%.03f\" >%.01fs</text>\n",
+ scale_x * i, scale_x * i, scale_y * height, scale_x * i, -5.0, 0.001 * i);
+ else
+ svg(" <line class=\"sec01\" x1=\"%.03f\" y1=\"0\" x2=\"%.03f\" y2=\"%.03f\" />\n",
+ scale_x * i, scale_x * i, scale_y * height);
+ }
+}
+
+static int analyze_plot(DBusConnection *bus)
+{
+ struct unit_times *times;
+ struct boot_times *boot;
+ struct utsname name;
+ int n, m = 1, y=0;
+ double width;
+ char *osname;
+ char *pretty_times;
+
+ boot = acquire_boot_times(bus);
+ if (!boot)
+ return -EIO;
+ pretty_times = pretty_boot_time(bus);
+ if (!pretty_times)
+ return -EIO;
+
+ osname = get_os_name();
+
+ n = uname(&name);
+ if (n < 0) {
+ log_error("Cannot get system name: %m");
+ return -errno;
+ }
+
+ n = acquire_time_data(bus, &times);
+ if (n<=0)
+ return n;
+
+ qsort(times, n, sizeof(struct unit_times), compare_unit_start);
+
+ width = scale_x * (boot->firmware_time + boot->finish_time);
+ if (width < 800.0)
+ width = 800.0;
+
+ if (boot->firmware_time > boot->loader_time)
+ m++;
+ if (boot->loader_time) {
+ m++;
+ if (width < 1000.0)
+ width = 1000.0;
+ }
+ if (boot->initrd_time)
+ m++;
+ if (boot->kernel_time)
+ m++;
+
+ for (struct unit_times *u = times; u < times + n; u++) {
+ double len;
+ if (u->ixt < boot->userspace_time ||
+ u->ixt > boot->finish_time) {
+ free(u->name);
+ u->name = NULL;
+ continue;
+ }
+ len = ((boot->firmware_time + u->ixt) * scale_x)
+ + (10.0 * strlen(u->name));
+ if (len > width)
+ width = len;
+
+ if (u->iet > u->ixt && u->iet <= boot->finish_time
+ && u->aet == 0 && u->axt == 0)
+ u->aet = u->axt = u->iet;
+ if (u->aet < u->ixt || u->aet > boot->finish_time)
+ u->aet = boot->finish_time;
+ if (u->axt < u->aet || u->aet > boot->finish_time)
+ u->axt = boot->finish_time;
+ if (u->iet < u->axt || u->iet > boot->finish_time)
+ u->iet = boot->finish_time;
+ m++;
+ }
+
+ svg("<?xml version=\"1.0\" standalone=\"no\"?>\n"
+ "<!DOCTYPE svg PUBLIC \"-//W3C//DTD SVG 1.1//EN\" "
+ "\"http://www.w3.org/Graphics/SVG/1.1/DTD/svg11.dtd\">\n");
+
+ svg("<svg width=\"%.0fpx\" height=\"%.0fpx\" version=\"1.1\" "
+ "xmlns=\"http://www.w3.org/2000/svg\">\n\n",
+ 80.0 + width, 150.0 + (m * scale_y));
+
+ /* write some basic info as a comment, including some help */
+ svg("<!-- This file is a systemd-analyze SVG file. It is best rendered in a -->\n"
+ "<!-- browser such as Chrome, Chromium or Firefox. Other applications -->\n"
+ "<!-- that render these files properly but much slower are ImageMagick, -->\n"
+ "<!-- gimp, inkscape, etc. To display the files on your system, just -->\n"
+ "<!-- point your browser to this file. -->\n\n"
+ "<!-- This plot was generated by systemd-analyze version %-16.16s -->\n\n", VERSION);
+
+ /* style sheet */
+ svg("<defs>\n <style type=\"text/css\">\n <![CDATA[\n"
+ " rect { stroke-width: 1; stroke-opacity: 0; }\n"
+ " rect.activating { fill: rgb(255,0,0); fill-opacity: 0.7; }\n"
+ " rect.active { fill: rgb(200,150,150); fill-opacity: 0.7; }\n"
+ " rect.deactivating { fill: rgb(150,100,100); fill-opacity: 0.7; }\n"
+ " rect.kernel { fill: rgb(150,150,150); fill-opacity: 0.7; }\n"
+ " rect.initrd { fill: rgb(150,150,150); fill-opacity: 0.7; }\n"
+ " rect.firmware { fill: rgb(150,150,150); fill-opacity: 0.7; }\n"
+ " rect.loader { fill: rgb(150,150,150); fill-opacity: 0.7; }\n"
+ " rect.userspace { fill: rgb(150,150,150); fill-opacity: 0.7; }\n"
+ " rect.box { fill: rgb(240,240,240); stroke: rgb(192,192,192); }\n"
+ " line { stroke: rgb(64,64,64); stroke-width: 1; }\n"
+ "// line.sec1 { }\n"
+ " line.sec5 { stroke-width: 2; }\n"
+ " line.sec01 { stroke: rgb(224,224,224); stroke-width: 1; }\n"
+ " text { font-family: Verdana, Helvetica; font-size: 10; }\n"
+ " text.sec { font-size: 8; }\n"
+ " ]]>\n </style>\n</defs>\n\n");
+
+ svg("<text x=\"20\" y=\"50\">%s</text>", pretty_times);
+ svg("<text x=\"20\" y=\"30\">%s %s (%s %s) %s</text>",
+ isempty(osname)? "Linux" : osname,
+ name.nodename, name.release, name.version, name.machine);
+ svg("<text x=\"20\" y=\"%.0f\">Legend: Red = Activating; Pink = Active; Dark Pink = Deactivating</text>",
+ 120.0 + (m *scale_y));
+
+ svg("<g transform=\"translate(%.3f,100)\">\n", 20.0 + (scale_x * boot->firmware_time));
+ svg_graph_box(m, -boot->firmware_time, boot->finish_time);
+
+ if (boot->firmware_time) {
+ svg_bar("firmware", -(int64_t) boot->firmware_time, -(int64_t) boot->loader_time, y);
+ svg_text(-(int64_t) boot->firmware_time, y, "firmware");
+ y++;
+ }
+ if (boot->loader_time) {
+ svg_bar("loader", -(int64_t) boot->loader_time, 0, y);
+ svg_text(-(int64_t) boot->loader_time, y, "loader");
+ y++;
+ }
+ if (boot->kernel_time) {
+ svg_bar("kernel", 0, boot->kernel_done_time, y);
+ svg_text(0, y, "kernel");
+ y++;
+ }
+ if (boot->initrd_time) {
+ svg_bar("initrd", boot->initrd_time, boot->userspace_time, y);
+ svg_text(boot->initrd_time, y, "initrd");
+ y++;
+ }
+ svg_bar("userspace", boot->userspace_time, boot->finish_time, y);
+ svg_text(boot->userspace_time, y, "userspace");
+ y++;
+
+ for (struct unit_times *u = times; u < times + n; u++) {
+ if (!u->name)
+ continue;
+ svg_bar("activating", u->ixt, u->aet, y);
+ svg_bar("active", u->aet, u->axt, y);
+ svg_bar("deactivating", u->axt, u->iet, y);
+ svg_text(u->ixt, y, u->time? "%s (%llums)" : "%s", u->name, (unsigned long long)u->time);
+ y++;
+ }
+ svg("</g>\n\n");
+
+ svg("</svg>");
+ return 0;
+}
+
+static int analyze_blame(DBusConnection *bus)
+{
+ struct unit_times *times;
+ int n = acquire_time_data(bus, &times);
+ if (n<=0)
+ return n;
+
+ qsort(times, n, sizeof(struct unit_times), compare_unit_time);
+
+ for (int i = 0; i < n; i++) {
+ if (times[i].time)
+ printf("%6llums %s\n", (unsigned long long)times[i].time, times[i].name);
+ }
+ return 0;
+}
+
+static int analyze_time(DBusConnection *bus)
+{
+ char *buf;
+ buf = pretty_boot_time(bus);
+ if (!buf)
+ return -EIO;
+ if (puts(buf) == EOF)
+ return -errno;
+ return 0;
+}
+
+static void analyze_help(void)
+{
+ printf("%s [OPTIONS...] {COMMAND} ...\n\n"
+ "Process systemd profiling information\n\n"
+ " -h --help Show this help\n"
+ " --version Show package version\n"
+ " --system Connect to system manager\n"
+ " --user Connect to user service manager\n\n"
+ "Commands:\n"
+ " time print time spent in the kernel before reaching userspace\n"
+ " blame print list of running units ordered by time to init\n"
+ " plot output SVG graphic showing service initialization\n\n",
+ program_invocation_short_name);
+}
+
+static int parse_argv(int argc, char *argv[])
+{
+ enum {
+ ARG_VERSION = 0x100,
+ ARG_USER,
+ ARG_SYSTEM
+ };
+
+ static const struct option options[] = {
+ { "help", no_argument, NULL, 'h' },
+ { "version", no_argument, NULL, ARG_VERSION },
+ { "user", no_argument, NULL, ARG_USER },
+ { "system", no_argument, NULL, ARG_SYSTEM },
+ { NULL, 0, NULL, 0 }
+ };
+
+ assert(argc >= 0);
+ assert(argv);
+
+ while (true) {
+ switch (getopt_long(argc, argv, "h", options, NULL)) {
+ case 'h':
+ analyze_help();
+ return 0;
+ case ARG_VERSION:
+ puts(PACKAGE_STRING "\n" SYSTEMD_FEATURES);
+ return 0;
+ case ARG_USER:
+ arg_scope = UNIT_FILE_USER;
+ break;
+ case ARG_SYSTEM:
+ arg_scope = UNIT_FILE_SYSTEM;
+ break;
+ case -1:
+ return 1;
+ case '?':
+ return -EINVAL;
+ default:
+ assert_not_reached("Unhandled option");
+ }
+ }
+}
+
+int main(int argc, char *argv[]) {
+ int r;
+ DBusConnection *bus = NULL;
+
+ setlocale(LC_ALL, "");
+ log_parse_environment();
+ log_open();
+
+ r = parse_argv(argc, argv);
+ if (r == 0)
+ return 0;
+ if (r < 0)
+ return 1;
+
+ bus = dbus_bus_get(arg_scope == UNIT_FILE_SYSTEM ? DBUS_BUS_SYSTEM : DBUS_BUS_SESSION, NULL);
+ if (!bus)
+ return 1;
+
+ if (!argv[optind] || streq(argv[optind], "time"))
+ r = analyze_time(bus);
+ else if (streq(argv[optind], "blame"))
+ r = analyze_blame(bus);
+ else if (streq(argv[optind], "plot"))
+ r = analyze_plot(bus);
+ else
+ log_error("Unknown operation '%s'.", argv[optind]);
+
+ dbus_connection_unref(bus);
+ if (r)
+ return 1;
+ return 0;
+}
generated by cgit v1.2.3-54-g00ecf (git 2.45.2) at 2024-11-04 11:32:31 +0000