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<b><a class="bz_bug_link
bz_status_NEEDINFO "
title="NEEDINFO - constant fps drops with Intel and Radeon"
href="https://bugs.freedesktop.org/show_bug.cgi?id=87886#c26">Comment # 26</a>
on <a class="bz_bug_link
bz_status_NEEDINFO "
title="NEEDINFO - constant fps drops with Intel and Radeon"
href="https://bugs.freedesktop.org/show_bug.cgi?id=87886">bug 87886</a>
from <span class="vcard"><a class="email" href="mailto:eero.t.tamminen@intel.com" title="Eero Tamminen <eero.t.tamminen@intel.com>"> <span class="fn">Eero Tamminen</span></a>
</span></b>
<pre>as root, mount debugfs and monitor CAGF (actual GPU frequency) value from
"/sys/kernel/debug/dri/0/i915_frequency_info", or if you have older kernel from
"/sys/kernel/debug/dri/0/i915_cur_delayinfo" Does it keep up, or go down when
you get FPS drop?
(If it goes down, this seems like kernel power management issue.)</pre>
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