[Bug 105157] [CI] igt at perf_pmu@busy-accuracy-* - fail - Failed assertion: (double)(busy_r) <= (1.0 + (0.15)) * (double)((double)target_busy_pct / 100.0) && (double)(busy_r) >= (1.0 - (0.15)) * (double)((double)target_busy_pct / 100.0)

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=105157

Martin Peres <martin.peres at free.fr> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|RESOLVED                    |CLOSED

--- Comment #24 from Martin Peres <martin.peres at free.fr> ---
(In reply to Chris Wilson from comment #23)
> Once more into the breach,
> 
> commit 1754cbd35005605a80b06d808b4f891555a151cd
> Author: Chris Wilson <chris at chris-wilson.co.uk>
> Date:   Wed Aug 8 14:20:26 2018 +0100
> 
>     igt/perf_pmu: Aim for a fixed number of iterations for calibrating
> accuracy
>     
>     Our observation is that the systematic error is proportional to the
>     number of iterations we perform; the suspicion is that it directly
>     correlates with the number of sleeps. Reduce the number of iterations,
>     to try and keep the error in check.
>     
>     Signed-off-by: Chris Wilson <chris at chris-wilson.co.uk>
>     Cc: Tvrtko Ursulin <tvrtko.ursulin at intel.com>
>     Reviewed-by: Tvrtko Ursulin <tvrtko.ursulin at intel.com>

That finally fixed it! Thanks :)

-- 
You are receiving this mail because:
You are the QA Contact for the bug.
You are on the CC list for the bug.
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <https://lists.freedesktop.org/archives/intel-gfx-bugs/attachments/20180907/27182f5a/attachment.html>