[Bug 81682] [snb] Frequent framerate drops (cpufreq?)

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=81682

--- Comment #41 from Greg Sutcliffe <bugsfreedesktop at emeraldreverie.org> ---
(In reply to Jesse Barnes from comment #40)
> Any news?  Have newer kernels helped at all, maybe with some changes to
> cpufreq?

Ok, so having returning to more intensive gaming, I've been keeping an eye out,
and it just happened again. Framerate dropped to 3fps for no apparent reason
that I can see. Cpufreq was already manually set to 'performance' via

for n in `seq 0 7` ; do echo performance >
/sys/devices/system/cpu/cpu$n/cpufreq/scaling_governor ; done

Once it kicks in, it affects the whole desktop - even killing and restarting
the game, I'm still stuck at 3fps.

To be honest, I've tweaked and twiddled this system so much trying to
troubleshoot this in the past that I'm not even sure what my configuration is
at the moment (although it's probably not much different from the above config
from last year). Do you have any recommended examples for Xorg config, module
settings etc, that I could try?

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