[Bug 110745] [GEN9+] 3-7% perf drop in SynMark2 v7 CSDof
bugzilla-daemon at freedesktop.org
bugzilla-daemon at freedesktop.org
Thu May 23 16:17:44 UTC 2019
https://bugs.freedesktop.org/show_bug.cgi?id=110745
Bug ID: 110745
Summary: [GEN9+] 3-7% perf drop in SynMark2 v7 CSDof
Product: Mesa
Version: git
Hardware: Other
OS: All
Status: NEW
Severity: normal
Priority: medium
Component: Drivers/DRI/i965
Assignee: intel-3d-bugs at lists.freedesktop.org
Reporter: eero.t.tamminen at intel.com
QA Contact: intel-3d-bugs at lists.freedesktop.org
Mesa performance in SynMark2 v7 CSDof test dropped 3-7% on all our GEN9
devices.
Setup:
- Ubuntu 18.04
- Unity / compiz desktop
- Mesa from git
- X server and drm-tip kernel from git within last 1-2 months, with modifier
support enabled
- FullHD monitor
Test-case:
- synmark2 OglCSDof
(configured to run in fullscreen FullHD resolution.)
Regression happened between following commits:
* 2019-05-14 16:23:12 e81392868e: iris/resource: Drop redundant checks for aux
support
* 2019-05-15 04:34:49 a9cef4f0e5: gallium: Add default check for
PIPE_CAP_FRAGMENT_SHADER_INTERLOCK
Notes:
* There are a lot of compiler changes between these dates
* Only CSDof test performance changed, and only on GEN9 devices (not on GEN7-8
ones)
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