[Bug 92975] [SKL][v4.3 bisected]SKL OpenCL performance reduced hugely
bugzilla-daemon at freedesktop.org
bugzilla-daemon at freedesktop.org
Wed Nov 18 05:39:27 PST 2015
https://bugs.freedesktop.org/show_bug.cgi?id=92975
Jani Nikula <jani.nikula at intel.com> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|NEW |NEEDINFO
--- Comment #7 from Jani Nikula <jani.nikula at intel.com> ---
(In reply to meng from comment #6)
> Just check, "CONFIG_DRM_I915_PRELIMINARY_HW_SUPPORT=y" is in our
> .config(both v4.3 and pre_v4.3).
Ah, okay.
> try the above patch on the first bad commit, the OpenCL performance issues
> can't be reproduced.
Thanks for testing; may I ask for two more test rounds, first current
drm-intel-nightly branch of http://cgit.freedesktop.org/drm-intel, and then
drm-intel-nightly + the patch from comment #4.
> BTW, no the patch, no "*ERROR* MOCS failed" in dmesg.
> if with the patch, there is "*ERROR* MOCS failed
This is expected, thanks for checking.
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