[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

--- Comment #7 from Chris Wilson <chris at chris-wilson.co.uk> ---
Hmm, I have

commit b7120a04360ddbd8166657187599e2a0a3b1f12e
Author: Chris Wilson <chris at chris-wilson.co.uk>
Date:   Sat Sep 15 17:03:22 2018 +0100

    drm/i915: Recover batch pool caches from shrinker

    Discard all of our batch pools under mempressure to make their pages
    available to the shrinker. We will quickly reacquire them when necessary
    for more GPU relocations or for the command parser.

    v2: Init the lists for mock_engine
    v3: Return a strong ref from i915_gem_batch_pool_get() and convert it
    into an active reference to protect ourselves against all allocations
    while the object is in play.
    v4: Couple shadow batch to active request early.

    Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=107936
    Signed-off-by: Chris Wilson <chris at chris-wilson.co.uk>
    Cc: Matthew Auld <matthew.william.auld at gmail.com>

with an interesting tagline. Memory says that it was blowing up... But it will
shrink the batch pool caches and so speed up basic-allocation.

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