| Summary: | [GEM] performance degradation after vt_switch on all platforms | ||
|---|---|---|---|
| Product: | Mesa | Reporter: | liuhaien <haien.liu> |
| Component: | Drivers/DRI/i915 | Assignee: | Eric Anholt <eric> |
| Status: | VERIFIED DUPLICATE | QA Contact: | Xorg Project Team <xorg-team> |
| Severity: | major | ||
| Priority: | high | CC: | eric, michael.fu |
| Version: | unspecified | ||
| Hardware: | Other | ||
| OS: | Linux (All) | ||
| Whiteboard: | |||
| i915 platform: | i915 features: | ||
| Bug Depends on: | |||
| Bug Blocks: | 18841 | ||
| Attachments: |
xorg.0.log
xorg conf file dmesg |
||
and it only happens on 915gm. Created attachment 20882 [details]
xorg conf file
sorry ,reproduce steps should be : Reproduce steps: ---------------- 1. xinit& 2. gnome-session& 3. glxgears 4. chvt 1 5. chvt 7 Zhenyu, can you take a look at that machine? I can't see it on 915G here, could you retest current 2.6 branch and for-airlied? Haien, anything special in dmesg? Created attachment 20884 [details]
dmesg
I have tested the latest 2.6 branch and for-airlied kernel and get the same issue, I have closed compiz,but dmesg shows: [drm] Initialized i915 1.6.0 20080730 on minor 0 compiz[2749]: segfault at 20 ip 080537ad sp bfb1fd10 error 4 in compiz[8047000+33000] thinkpad_acpi: CMOS NVRAM (7) and EC (6) do not agree on display brightness level haien, don't try to mess up the bug. ;) I did exactly in comment #3, but not saw this problem. (In reply to comment #9) > haien, don't try to mess up the bug. ;) > > I did exactly in comment #3, but not saw this problem. Zhenyu, it's not surprising you can't reproduce this on your machine, as this 915gm is the only machine suffered by this issue out of so many QA machines. So please stick to this machine. now this issue spreads to all platforms against below commit:
Libdrm: (master)c86d431fe6174b1c2de531929213ea7dbd92326d
Mesa_stable: (intel-2008-q4)0d5b1e591b7fb2cf3109b7e147bb3ea6aa8f8b15
Xserver_stable: (server-1.6-branch)32e81074b967716865aef08b66ec29caf0fec2c5
Xf86_video_intel_stable: (xf86-video-intel-2.6-branch)
83f3c376b5942e134047a220e6e5f2432ffc492c
(In reply to comment #11) > now this issue spreads to all platforms against below commit: > Libdrm: (master)c86d431fe6174b1c2de531929213ea7dbd92326d > Mesa_stable: (intel-2008-q4)0d5b1e591b7fb2cf3109b7e147bb3ea6aa8f8b15 > Xserver_stable: (server-1.6-branch)32e81074b967716865aef08b66ec29caf0fec2c5 > Xf86_video_intel_stable: (xf86-video-intel-2.6-branch) > 83f3c376b5942e134047a220e6e5f2432ffc492c > > haien, other than glxgears, do you see obvious render performance downgrade such as surfing the net,etc? (In reply to comment #12) > (In reply to comment #11) > > now this issue spreads to all platforms against below commit: > > Libdrm: (master)c86d431fe6174b1c2de531929213ea7dbd92326d > > Mesa_stable: (intel-2008-q4)0d5b1e591b7fb2cf3109b7e147bb3ea6aa8f8b15 > > Xserver_stable: (server-1.6-branch)32e81074b967716865aef08b66ec29caf0fec2c5 > > Xf86_video_intel_stable: (xf86-video-intel-2.6-branch) > > 83f3c376b5942e134047a220e6e5f2432ffc492c > > > > > > haien, other than glxgears, do you see obvious render performance downgrade > such as surfing the net,etc? > just 3D demos. Jesse's patch on bug#18879 (VT switch vblank issue) also fixes this, so I'm marking dup. *** This bug has been marked as a duplicate of bug 18879 *** verified agaist:
xf86_video_intel xf86-video-intel-2.6-branch
commit 4447973345a2a7af20ba1d6cb18c5f1ed8949d00 (2.5.99.2)
mesa intel-2008-q4 branch
commit eef0dcc298f65158dc750a09f80317ded1101dc7 (before and close to
7.3)
kernel drm-intel-2.6.28 branch
commit e1a6fcee467556a7e955fe1f7ccc134dd2f974e7 (2.6.28 + 5 patches)
libdrm master branch
commit ac8b3308b9432edef5cabe30559004314d42d98c (after 2.4.3)
xserver server-1.6-branch
commit 8cfb353078d9b5d03a9633304038141a60adc970
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Created attachment 20881 [details] xorg.0.log System Environment: -------------------------- Host: x-915gm Arch: i386 xf86_video_intel xf86-video-intel-2.6-branch commit b156b3165e1aae5df0353737d0335ac2e653f5fd mesa intel-2008-q4 branch commit 154a9e5317f890618932cea0129ef887e16baf84 kernel for-airlied branch commit 66647dc60d16fae9f6963fd98b6d9baa1a8dac69 libdrm master branch commit b0d93c74d884b40bd94469a5ef75fdb2fef17680 xserver 1.6 is recommended. Bug detailed description: ------------------------- startx, vt-switch after runing a glxgears, the performance will go down to about 1 fps from 60 fps, and gears seems like still. Reproduce steps: ---------------- 1. xinit& 2. gnome-session& 3. chvt 1 4. chvt 7