Messages in this thread | | | From | Milian Wolff <> | Subject | Re: [RFC 00/10] perf: Add cputime events/metrics | Date | Wed, 26 Sep 2018 16:44:08 +0200 |
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On Thursday, June 7, 2018 1:10:18 AM CEST Andi Kleen wrote: > > I had some issues with IDLE counter being miscounted due to stopping > > of the idle tick. I tried to solve it in this patch (it's part of the > > > > patchset): > > perf/cputime: Don't stop idle tick if there's live cputime event > > > > but I'm pretty sure it's wrong and there's better solution. > > At least on intel we already have hardware counters for different idle > states. You just would need to add them and convert to the same > unit. > > But of course it's still useful when this is not available. > > > My current plan is now to read those counters in perf top/record/report > > to show (at least) the idle percentage for the current profile. > > It's useful. Thanks for working on it. I was thinking about doing > something similar for some time.
Hey Jiri,
what happened to this patch series? I also believe it's super useful, even when it's not yet perfect.
Thanks
-- Milian Wolff | milian.wolff@kdab.com | Senior Software Engineer KDAB (Deutschland) GmbH, a KDAB Group company Tel: +49-30-521325470 KDAB - The Qt, C++ and OpenGL Experts[unhandled content-type:application/pkcs7-signature] | |