[Bug 72906] [IVB/HSW bisected] 3D performance (e.g. padman, smokin-guns, urbanterror) reduced by 20%, ~50% with GLB 2.7 Egypt on GT3e

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=72906

--- Comment #18 from meng <mengmeng.meng at intel.com> ---
A Kernel patch on -dinq would fix the bug.
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8ea99c928787ba1712b7506b4c56c948c45d84b1 is the first bad commit
commit 8ea99c928787ba1712b7506b4c56c948c45d84b1
Author: Daniel Vetter <daniel.vetter at ffwll.ch>
Date:   Fri Feb 14 14:01:21 2014 +0100

    drm/i915: Only bind each object rather than for every execbuffer

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