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authorLennart Poettering <lennart@poettering.net>2013-01-19 04:20:23 +0100
committerLennart Poettering <lennart@poettering.net>2013-01-19 04:22:09 +0100
commit2e3d069236777cd62f755a02f4a239306b4ad21a (patch)
tree82ffbaaa8b6ebb2ffd90454443cf5b403514afff /src/test
parent610d99284feb9e942bce601c6aac1a5074545e6b (diff)
core: if the bootloader supports it, determine firmware and boot loader delay
This allows us to print simple performance data of all parts of the boot now: - firmware - boot loader - kernel - initrd - userspace This only works for bootloaders which support passing TSC data via EFI variables. As of now that's only gummiboot.
Diffstat (limited to 'src/test')
-rw-r--r--src/test/test-efivars.c47
1 files changed, 47 insertions, 0 deletions
diff --git a/src/test/test-efivars.c b/src/test/test-efivars.c
new file mode 100644
index 0000000000..e54a83665a
--- /dev/null
+++ b/src/test/test-efivars.c
@@ -0,0 +1,47 @@
+/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
+
+/***
+ This file is part of systemd.
+
+ Copyright 2013 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 "util.h"
+#include "log.h"
+#include "efivars.h"
+
+int main(int argc, char* argv[]) {
+ char s[MAX(FORMAT_TIMESPAN_MAX, FORMAT_TIMESTAMP_MAX)];
+ int r;
+ dual_timestamp fw, l, k;
+
+ dual_timestamp_from_monotonic(&k, 0);
+
+ r = efi_get_boot_timestamps(NULL, &fw, &l);
+ if (r < 0) {
+ log_error("Failed to read variables: %s", strerror(-r));
+ return 1;
+ }
+
+ log_info("Firmware began %s before kernel.", format_timespan(s, sizeof(s), fw.monotonic));
+ log_info("Loader began %s before kernel.", format_timespan(s, sizeof(s), l.monotonic));
+
+ log_info("Firmware began %s.", format_timestamp(s, sizeof(s), fw.realtime));
+ log_info("Loader began %s.", format_timestamp(s, sizeof(s), l.realtime));
+ log_info("Kernel began %s.", format_timestamp(s, sizeof(s), k.realtime));
+
+ return 0;
+}