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SubjectRe: [PATCH 6/7] trace: Add an option for boot clock as trace clock
On Mon, 28 Nov 2016 14:35:23 -0800
John Stultz <john.stultz@linaro.org> wrote:

> 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.
>

Acked-by: Steven Rostedt <rostedt@goodmis.org>

-- Steve

> 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
> };
>

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