Messages in this thread | | | Date | Wed, 12 Nov 2014 20:26:05 +0530 | Subject | Re: Future of NOHZ full/isolation development (was Re: [NOHZ] Remove scheduler_tick_max_deferment) | From | Viresh Kumar <> |
| |
On 12 November 2014 19:24, Frederic Weisbecker <fweisbec@gmail.com> wrote: > I'd rather leave that to tracepoints. Like trace_hrtimer_spurious().
Yeah, it was just to prove things right on the console without getting into traces.
> Or better yet: have trace_hrtimer_interrupt() which we can compare against > trace_hrtimer_expire_entry/exit() to check if any hrtimer callback have run > in the interrupt. This way we avoid workarounds like the above count.
Yeah, I also believe we better add this debug information to mainline kernel. I will try to get a patch for that soon.
Would it be recommended to add both trace points? i.e. trace_hrtimer_interrupt() and trace_hrtimer_spurious() ?
-- viresh
| |