[Bug 103929] [CI] igt at perf_pmu@rc6 - fail - Failed assertion: (double)(idle - prev) <= (1.0 + (tolerance)) * (double)(slept) && (double)(idle - prev) >= (1.0 - (tolerance)) * (double)(slept)

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=103929

Chris Wilson <chris at chris-wilson.co.uk> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|REOPENED                    |RESOLVED
         Resolution|---                         |FIXED

--- Comment #3 from Chris Wilson <chris at chris-wilson.co.uk> ---
Once more into the breach, (sleepily by accident pushed):

commit ba6c4e6e94f43857c6fa13e5c4cfddad780dc42b (upstream/master,
origin/master, origin/HEAD)
Author: Chris Wilson <chris at chris-wilson.co.uk>
Date:   Thu Nov 30 07:48:46 2017 +0000

    igt/perf_pmu: Increase delay for rc6 to start

    I was thinking of the RC6 threshold parameter, but needed to consider
    the RC6 evaluation interval instead. RC6 doesn't enable until activity
    is below the threshold inside an evaluation interval, therefore we need
    to wait at least 2 EI after idling before we can expect RC6 to be
    enabled.

    Fixes: 55a17bc2d040 ("igt/perf_pmu: Reduce arbitrary delays before rc6")
    Signed-off-by: Chris Wilson <chris at chris-wilson.co.uk>
    Cc: Tvrtko Ursulin <tvrtko.ursulin at intel.com>

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