http://bugzilla.kernel.org/show_bug.cgi?id=10592
Summary: [old regression] performance drop for glx after vblank
patch
Product: Drivers
Version: 2.5
KernelVersion: 2.6.20-2.6.25
Platform: All
OS/Version: Linux
Tree: Mainline
Status: NEW
Severity: normal
Priority: P1
Component: Video(DRI)
AssignedTo: [EMAIL PROTECTED]
ReportedBy: [EMAIL PROTECTED]
Latest working kernel version:2.6.19
Earliest failing kernel version:2.6.20
Distribution:ubuntu 8.04
Hardware Environment:ASUS P5LD2-VM ( video i945g , Pentium D )
Software Environment:
Problem Description:
This is old regression. Tested with glxgears i get this results:
v2.6.19 _1413.112_FPS_
v2.6.20 1280.060 FPS
v2.6.22 1300.116 FPS
v2.6.24 1205.895 FPS
v2.6.25-git* 1226.967 FPS
Thirst regression was pasebly introduced by vblank patch in i915:
commit ee2fae03d68e702866a8661fbee7ff2f2f3754d7
Merge: e4ddc9c... f9841a8...
Author: Linus Torvalds <[EMAIL PROTECTED]>
Date: Wed Dec 20 23:59:07 2006 -0800
Merge branch 'drm-patches' of
master.kernel.org:/pub/scm/linux/kernel/git/ai
* 'drm-patches' of
master.kernel.org:/pub/scm/linux/kernel/git/airlied/drm-2
drm: Stop defining pci_pretty_name
drm: r128: comment aligment with drm git
drm: make kernel context switch same as for drm git tree.
drm: fixup comment header style
drm: savage: compat fix from drm git.
drm: Unify radeon offset checking.
i915_vblank_tasklet: Try harder to avoid tearing.
DRM: handle pci_enable_device failure
drm: fix return value check
I didn't get correct bisecting. Seems git-bisect can't correctly working with
2.9.19 tree or i did some thin really wrong, so i get this resoult:
commit e1036502e5263851259d147771226161e5ccc85a
Author: Nicolas Pitre <[EMAIL PROTECTED]>
Date: Tue Dec 12 13:32:29 2006 -0500
[PATCH] remove config ordering/dependency between ucb1400-ts and sound
subsy
Commit 2d4ba4a3b9aef95d328d74a17ae84f8d658059e2 introduced a dependency
that was never meant to exist when the ac97_bus.c module was created.
Move ac97_bus.c up the directory hierarchy to make sure it is built when
selected even if sound is configured out so things work as originally
intended.
Signed-off-by: Nicolas Pitre <[EMAIL PROTECTED]>
Acked-by: Randy Dunlap <[EMAIL PROTECTED]>
Signed-off-by: Linus Torvalds <[EMAIL PROTECTED]>
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