Re: [PATCH] sched/fair: Make PELT signal more accurate

From	Peter Zijlstra <peterz@infradead.org>
Newsgroups	linux.kernel
Subject	Re: [PATCH] sched/fair: Make PELT signal more accurate
Date	2017-08-10 12:40 +0200
Message-ID	<ucT2H-4pl-43@gated-at.bofh.it> (permalink)
References	(1 earlier) <ubQgz-ju-53@gated-at.bofh.it> <uclX4-70m-25@gated-at.bofh.it> <ucwpr-5Qr-13@gated-at.bofh.it> <ucDqV-243-19@gated-at.bofh.it> <ucPV7-2fZ-5@gated-at.bofh.it>
Organization	linux.* mail to news gateway

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On Thu, Aug 10, 2017 at 09:17:34AM +0200, Vincent Guittot wrote:
> Ah! this is quite confusing and not obvious that the trace is not for
> 1 signal but in fact 2 signals are interleaved and only 1 is displayed
> and that we have to filter them
> 
> So ok i can see that the trace with cfs_rq=1 is not updated. At the
> opposite, we can see that the other trace (for the se i assume) is
> updated normally whereas they are normally synced on the same clock

So I'm still sitting on those patches that sync up the PELT window
between group-cfs_rq and its corresponding group-se.

I was hoping to get around to looking at all that again and adding
Josef's last few patches and promoting the lot from /experimental to
/core before going on holidays next week, but we'll see.

Thread

[PATCH] sched/fair: Make PELT signal more accurate Joel Fernandes <joelaf@google.com> - 2017-08-04 17:50 +0200
  Re: [PATCH] sched/fair: Make PELT signal more accurate Vincent Guittot <vincent.guittot@linaro.org> - 2017-08-07 15:30 +0200
    Re: [PATCH] sched/fair: Make PELT signal more accurate Joel Fernandes <joelaf@google.com> - 2017-08-09 01:20 +0200
      Re: [PATCH] sched/fair: Make PELT signal more accurate Vincent Guittot <vincent.guittot@linaro.org> - 2017-08-09 12:30 +0200
        Re: [PATCH] sched/fair: Make PELT signal more accurate Joel Fernandes <joelaf@google.com> - 2017-08-09 20:00 +0200
          Re: [PATCH] sched/fair: Make PELT signal more accurate Vincent Guittot <vincent.guittot@linaro.org> - 2017-08-10 09:20 +0200
            Re: [PATCH] sched/fair: Make PELT signal more accurate Peter Zijlstra <peterz@infradead.org> - 2017-08-10 12:40 +0200
            Re: [PATCH] sched/fair: Make PELT signal more accurate Joel Fernandes <joelaf@google.com> - 2017-08-10 17:30 +0200
  Re: [PATCH] sched/fair: Make PELT signal more accurate Peter Zijlstra <peterz@infradead.org> - 2017-08-07 15:50 +0200
    Re: [PATCH] sched/fair: Make PELT signal more accurate Joel Fernandes <joelaf@google.com> - 2017-08-09 01:40 +0200
    Re: [PATCH] sched/fair: Make PELT signal more accurate Joel Fernandes <joelaf@google.com> - 2017-08-11 01:20 +0200
  Re: [lkp-robot] [sched/fair] dca93994f6: unixbench.score -8.1% regression Joel Fernandes <joelaf@google.com> - 2017-08-11 18:00 +0200

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