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<b><a class="bz_bug_link
bz_status_RESOLVED bz_closed"
title="RESOLVED NOTABUG - [IVB bisected]x11perf performance reduced by 40%"
href="https://bugs.freedesktop.org/show_bug.cgi?id=62710#c5">Comment # 5</a>
on <a class="bz_bug_link
bz_status_RESOLVED bz_closed"
title="RESOLVED NOTABUG - [IVB bisected]x11perf performance reduced by 40%"
href="https://bugs.freedesktop.org/show_bug.cgi?id=62710">bug 62710</a>
from <span class="vcard"><a class="email" href="mailto:mengmeng.meng@intel.com" title="meng <mengmeng.meng@intel.com>"> <span class="fn">meng</span></a>
</span></b>
<pre>It's caused by the kernel configure “CONFIG_PROVE_LOCKING” that is the same as
<a class="bz_bug_link
bz_status_VERIFIED bz_closed"
title="VERIFIED NOTABUG - [IVB] x11perf performance reduced by 40%"
href="show_bug.cgi?id=54795">bug 54795</a>.</pre>
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