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<b><a class="bz_bug_link
bz_status_NEW "
title="NEW - Radeon: heavy r300 performance drop regression between 11.x and 19.x"
href="https://bugs.freedesktop.org/show_bug.cgi?id=110781#c11">Comment # 11</a>
on <a class="bz_bug_link
bz_status_NEW "
title="NEW - Radeon: heavy r300 performance drop regression between 11.x and 19.x"
href="https://bugs.freedesktop.org/show_bug.cgi?id=110781">bug 110781</a>
from <span class="vcard"><a class="email" href="mailto:u9vata@gmail.com" title="Richard Thier <u9vata@gmail.com>"> <span class="fn">Richard Thier</span></a>
</span></b>
<pre>Slowdown cause is found when bisecting:
8b3a257851905ff444d981e52938cbf2b36ba830 is the first bad commit
commit 8b3a257851905ff444d981e52938cbf2b36ba830
Author: Marek Olšák <<a href="mailto:marek.olsak@amd.com">marek.olsak@amd.com</a>>
Date: Tue Jul 18 16:08:44 2017 -0400
radeonsi: set a per-buffer flag that disables inter-process sharing (v4)
For lower overhead in the CS ioctl.
Winsys allocators are not used with interprocess-sharable resources.
v2: It shouldn't crash anymore, but the kernel will reject the new flag.
v3 (christian): Rename the flag, avoid sending those buffers in the BO
list.
v4 (christian): Remove setting the kernel flag for now
Reviewed-by: Marek Olšák <<a href="mailto:marek.olsak@amd.com">marek.olsak@amd.com</a>></pre>
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