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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#c46">Comment # 46</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>In comparison this is the unpatched 19.x originally (10 sec):
-> 12466 (any) ioctl calls
-> 3111 DRM_IOCTL_RADEON_GEM_CREATE
-> 3112 DRM_IOCTL_GEM_CLOSE
^^Sorry these values were bad, it is not this much and I don't know how I
measured this back then but I cannot do it anymore.
Actually it is not that easy to find the "more minor" issue, but I still feel
it is there. The only way for finding it is to bisect in this way:
-> bisect ...
-> apply patches of Marek
-> See if result has 7-8 CREATE calls or a bit more
-> stash away patches
-> bisect ...
Only this way it is properly measurable because "measuring" without the patch
in place is much harder to do by naked eye.</pre>
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