Groups | Search | Server Info | Keyboard shortcuts | Login | Register [http] [https] [nntp] [nntps]
Groups > linux.kernel > #1531744
| From | John Stultz <john.stultz@linaro.org> |
|---|---|
| Newsgroups | linux.kernel |
| Subject | [PATCH 6/7] trace: Add an option for boot clock as trace clock |
| Date | 2016-11-28 23:40 +0100 |
| Message-ID | <sICKB-89o-19@gated-at.bofh.it> (permalink) |
| References | <sICKB-89o-17@gated-at.bofh.it> |
| Organization | linux.* mail to news gateway |
From: Joel Fernandes <joelaf@google.com>
Unlike monotonic clock, boot clock as a trace clock will account for
time spent in suspend useful for tracing suspend/resume. This uses
earlier introduced infrastructure for using the fast boot clock.
Cc: Steven Rostedt <rostedt@goodmis.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Richard Cochran <richardcochran@gmail.com>
Cc: Prarit Bhargava <prarit@redhat.com>
Reviewed-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Joel Fernandes <joelaf@google.com>
Signed-off-by: John Stultz <john.stultz@linaro.org>
---
kernel/trace/trace.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/kernel/trace/trace.c b/kernel/trace/trace.c
index 8696ce6..f7b64db 100644
--- a/kernel/trace/trace.c
+++ b/kernel/trace/trace.c
@@ -1125,6 +1125,7 @@ static struct {
{ trace_clock, "perf", 1 },
{ ktime_get_mono_fast_ns, "mono", 1 },
{ ktime_get_raw_fast_ns, "mono_raw", 1 },
+ { ktime_get_boot_fast_ns, "boot", 1 },
ARCH_TRACE_CLOCKS
};
--
2.7.4
Back to linux.kernel | Previous | Next — Next in thread | Find similar | Unroll thread
[PATCH 6/7] trace: Add an option for boot clock as trace clock John Stultz <john.stultz@linaro.org> - 2016-11-28 23:40 +0100 Re: [PATCH 6/7] trace: Add an option for boot clock as trace clock Steven Rostedt <rostedt@goodmis.org> - 2016-11-29 00:10 +0100 [tip:timers/core] trace: Add an option for boot clock as trace clock tip-bot for Joel Fernandes <tipbot@zytor.com> - 2016-11-29 18:20 +0100
csiph-web