[Mesa-dev] [Bug 87886] constant fps drops with Intel and Radeon

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=87886

--- Comment #26 from Eero Tamminen <eero.t.tamminen at intel.com> ---
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.)

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