[Bug 90112] [BSW bisected] OglGSCloth/Lightsmark/CS/ Portal/ Half Life 2 games performance decreased by 15%-45%

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=90112

--- Comment #31 from Chris Wilson <chris at chris-wilson.co.uk> ---
Ok, I have seen an interesting drop on byt with OglGSCloth. First look says it
is not a GPU frequency issue - coarse sampling of the frequency implies that it
remains throughout the test. But the render %busy along with completion
interrupts are both higher for the preceding commit, confirming the higher
throughput measured by the test.

Have test system, I can dig.

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