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<b><a class="bz_bug_link
bz_status_RESOLVED bz_closed"
title="RESOLVED NOTABUG - gem_exec_flush stress tests fail on APL(Celeron) Platform"
href="https://bugs.freedesktop.org/show_bug.cgi?id=108722#c12">Comment # 12</a>
on <a class="bz_bug_link
bz_status_RESOLVED bz_closed"
title="RESOLVED NOTABUG - gem_exec_flush stress tests fail on APL(Celeron) Platform"
href="https://bugs.freedesktop.org/show_bug.cgi?id=108722">bug 108722</a>
from <span class="vcard"><a class="email" href="mailto:lemody@gmail.com" title="Tapani Pälli <lemody@gmail.com>"> <span class="fn">Tapani Pälli</span></a>
</span></b>
<pre>(In reply to Chris Wilson from <a href="show_bug.cgi?id=108722#c11">comment #11</a>)
<span class="quote">> The before- tests are meant to fail. Userspace is leaving the caches
> polluted and not performing any domain changes (no clflushes) prior to
> access. Their only purpose was to prove that we cannot apply this
> optimisation in the kernel and userspace must also be wary of not falling
> into the same trap.</span >
Thanks for the explanation. Uhh .. this means we are likely missing a flush
somewhere within anv driver or client is not properly calling
vkFlushMappedMemoryRanges, vkInvalidateMappedMemoryRanges.</pre>
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