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<b><a class="bz_bug_link
bz_status_NEW "
title="NEW - 5.3.11 regression: No RC6 on Kaby Lake"
href="https://bugs.freedesktop.org/show_bug.cgi?id=112315#c2">Comment # 2</a>
on <a class="bz_bug_link
bz_status_NEW "
title="NEW - 5.3.11 regression: No RC6 on Kaby Lake"
href="https://bugs.freedesktop.org/show_bug.cgi?id=112315">bug 112315</a>
from <span class="vcard"><a class="email" href="mailto:chris@chris-wilson.co.uk" title="Chris Wilson <chris@chris-wilson.co.uk>"> <span class="fn">Chris Wilson</span></a>
</span></b>
<pre>Correct; that patch disables rc6 while active to prevent catastrophe. And yes,
no rc6 is itself pretty catastrophic.
Could you please do something like:
$ perf stat -a -x, -r 1 \
-e "power/energy-pkg/" \
-e "power/energy-cores/" \
-e "power/energy-gpu/" \
-e "i915/actual-frequency/" \
-e "i915/rc6-residency/" \
-e "i915/rcs0-busy/" \
-e "i915/bcs0-busy/" \
-e "i915/vcs0-busy/" \
sleep 300
while you do your normal activities, and report before/after? (Trying to do the
same activity in each sample.)</pre>
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