Re: [PATCH 3/3] perf events: add timehist option to record and report

Ingo Molnar
2011-02-19T09:33:16Z

* David Ahern <daahern@cisco.com> wrote:

> On 01/23/11 at 03:45:67 a syslog event noted an application restart.
> Checking the applications logs it went silent. Why? What does perf say?
>
> Oh, 2 days have gone by before said event is reported to engineering,
> and the server was been rebooted to 'clear' the problem - hence
> resetting monotonic clock.

I think that's a valid usecase and the feature you are suggestion is very useful.

Why not extend the regular trace output to also (optionally) output GTOD timestamps?

Thanks,

Ingo