[Bug 88103] New: [BSW Bisected]GLES 3DMMES 2.0 taiji decreased by ~40%

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=88103

            Bug ID: 88103
           Summary: [BSW Bisected]GLES 3DMMES 2.0 taiji decreased by ~40%
           Product: DRI
           Version: unspecified
          Hardware: Other
                OS: All
            Status: NEW
          Severity: major
          Priority: medium
         Component: DRM/Intel
          Assignee: intel-gfx-bugs at lists.freedesktop.org
          Reporter: wendy.wang at intel.com
        QA Contact: intel-gfx-bugs at lists.freedesktop.org
                CC: intel-gfx-bugs at lists.freedesktop.org

Created attachment 111843
  --> https://bugs.freedesktop.org/attachment.cgi?id=111843&action=edit
dmesg_taiji.txt

System Environment:
--------------------------
Platform: BSW
OS Distribution: Ubuntu 14.04

Description:
--------------------------
Run GLES 3DMMES 2.0 taiji case, the bad commit cause taiji case FPS decreased
by ~40%.

Regression:
--------------------------
Yes, bisected on drm-intel-next-queued branch:

First bad commit is 
commit 5a0afd4b78ec23f27f5d486ac3d102c2e8d66bd7 
Author: Deepak S <deepak.s at linux.intel.com>
Date:   Sat Dec 13 11:43:27 2014 +0530

    drm/i915/chv: Use timeout mode for RC6 on chv

    Higher RC6 residency is observed using timeout mode
    instead of EI mode. It's Recommended to use TO Method for RC6.

    v2: Add comment about timeout threshold. (Tom)

    Signed-off-by: Deepak S <deepak.s at linux.intel.com>
    Reviewed-by: Ville Syrjälä <ville.syrjala at linux.intel.com>
    Signed-off-by: Daniel Vetter <daniel.vetter at ffwll.ch>

Reproduce steps:
1. xinit &
2. ./3DMMES2_taiji.sh

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