[Bug 107936] [CI][DRMTIP] igt at gem_exec_parse@basic-allocation - timeout

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=107936

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

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

--- Comment #10 from Martin Peres <martin.peres at free.fr> ---
(In reply to Chris Wilson from comment #9)
> Test clamped to
> 
> commit a382aeec489a187591677644cc3b98e34322b474 (HEAD, upstream/master)
> Author: Chris Wilson <chris at chris-wilson.co.uk>
> Date:   Mon Feb 11 14:29:29 2019 +0000
> 
>     i915/gem_exec_parse: Switch to a fixed timeout for basic-allocations
>     
>     basic-allocations was written to demonstrate a flaw in our continual
>     reallocation of cmdparser shadow bo, largely fixed by keeping a small
>     cache of bo of different lengths (to speed up the search for the correct
>     sized bo). We only care enough to exercise the slowdown by submitting
>     lots of execbufs, and can see the effect of bo caching on the rate, so
>     replace the fixed number of iterations with a timeout and count how many
>     batches we could submit instead.
>     
>     Similarly, we now do not need to wait for all of our queue to complete
>     as we can tell the kernel to drop the queue instead.
>     
>     References: https://bugs.freedesktop.org/show_bug.cgi?id=107936
>     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>
> 
> 
> Must remember to finish off the shrinker patches.

Still not fixing all the failure, as they pretty much fail every single drmtip
run on the chromebooks:

https://intel-gfx-ci.01.org/tree/drm-tip/drmtip_237/fi-hsw-peppy/igt@gem_exec_parse@basic-allocation.html

https://intel-gfx-ci.01.org/tree/drm-tip/drmtip_237/fi-byt-clapper/igt@gem_exec_parse@basic-allocation.html

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