[Bug 109408] [Kabylake] RPS waitboost regression since v4.20

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=109408

--- Comment #4 from Chris Wilson <chris at chris-wilson.co.uk> ---
The other angle I was thinking is about is maybe we simply are not hitting
i915_request_wait as often (and so not saying "please boost me!").

Compare and contrast "perf record -a -c 1 -e i915:i915_request_wait_begin"?

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