[Bug 79623] New: [IVB BYT HSW BDW Bisected] SynMark_OglBatch5/OglDrvCtx performance reduced 20%~40%

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=79623

          Priority: medium
            Bug ID: 79623
          Assignee: chris at chris-wilson.co.uk
           Summary: [IVB BYT HSW BDW Bisected] SynMark_OglBatch5/OglDrvCtx
                    performance reduced 20%~40%
        QA Contact: intel-gfx-bugs at lists.freedesktop.org
          Severity: major
    Classification: Unclassified
                OS: Linux (All)
          Reporter: jianx.zhou at intel.com
          Hardware: All
            Status: NEW
           Version: git
         Component: Driver/intel
           Product: xorg

Libdrm: (master)libdrm-2.4.54-9-g8fc62ca8ac010659023bb63c4759eb683de4f9af
Mesa: (master)328e9593173bc69352e1707f119a7aca9d540cf9
Xserver: (master)xorg-server-1.15.99.902-117-g7ca458493aa2f0aa091c989ea0768611
Xf86_video_intel:
(master)2.99.911-250-g4cafd1fbb1a2441a9ba5dac7f2a0e1b3f5957c62
Cairo: (master)ead5c7909f3db1d0d81121fc2775c458871891b2
Libva: (staging)35e70cb9b9c77dfb99fb370e319ed501f0c31b17
Libva_intel_driver: (staging)fbbe401aa28a0b3859d587ef08f0df15a2f7c8f2
Kernel_version: drm-intel-nightly(git-455a8f)

Bug detailed description:
----------------------------------------------
SynMark_OglBatch5/OglDrvCtx performance reduced 20%~40% on IVB/BYT/HSW/BDW, The
problem exists both on gnome-session and Raw X.
It’s Xf86 regression, bisecting show that the first bad commit is:
975b9798be77b30cbed485583d0ccb48318708f7 (bad commit)
0fbe8995d51b4643f1cf06c07da8b4b5ac5ae7c3 (skip error with “dri3.c:47:1:error:
control reaches end of non-void function ”)
67b37332bd45dd4cea297107bfdc9df21984fdcd  (skip error with “dri3.c:47:1: error:
control reaches end of non-void function”)
9cf6cd9726ed5ba73bb8c38c06f7b5c78706309b  (skip error with “dri3.c:47:1: error:
control reaches end of non-void function”)
d8eb87f84f88ad2df42c6fed1d93df76589a14e3  (skip error with “dri3.c:47:1: error:
control reaches end of non-void function”)


Reproduce steps:
---------------------------------------------
1.   xinit&
2.  ./synmark2 OglBatch5

-- 
You are receiving this mail because:
You are the QA Contact for the bug.
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.freedesktop.org/archives/intel-gfx-bugs/attachments/20140604/d694df9f/attachment.html>