From: bugzilla-daemon@freedesktop.org
To: dri-devel@lists.freedesktop.org
Subject: [Bug 34332] New: [r300g, bisected] HoN: corruption with tiling and CS ioctl thread offloading
Date: Wed, 16 Feb 2011 03:35:24 -0800 (PST) [thread overview]
Message-ID: <bug-34332-502@http.bugs.freedesktop.org/> (raw)
https://bugs.freedesktop.org/show_bug.cgi?id=34332
Summary: [r300g, bisected] HoN: corruption with tiling and CS
ioctl thread offloading
Product: Mesa
Version: git
Platform: Other
OS/Version: All
Status: NEW
Keywords: regression
Severity: normal
Priority: medium
Component: Drivers/Gallium/r300
AssignedTo: dri-devel@lists.freedesktop.org
ReportedBy: pavel.ondracka@email.cz
Created an attachment (id=43425)
--> (https://bugs.freedesktop.org/attachment.cgi?id=43425)
screenshot
There is corruption in Heroes of Newerth menu and also ingame.
b9e2cde6006b557a3a23a82384899f4d5a5ac7b8 is the first bad commit
commit b9e2cde6006b557a3a23a82384899f4d5a5ac7b8
Author: Marek Olšák <maraeo@gmail.com>
Date: Tue Feb 15 05:43:44 2011 +0100
r300g: offload the CS ioctl to another thread
This is a multi-threading optimization which hides the kernel overhead
behind a thread. It improves performance in CPU-limited apps by 2-15%.
Of course you must have at least 2 cores for it to make any difference.
It can be disabled with:
export RADEON_THREAD=0
RADEON_THREAD=0 or RADEON_DEBUG=notiling solves this bug.
The screenshot is taken without libtxc_dxtn. The corruption is much better when
libtxc_dxtn is present, but not completely gone.
GPU: RV530
mesa: f53436d821a5173075b2a4a8db8cd23d9669f6e2
kernel: 2.6.37
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next reply other threads:[~2011-02-16 11:35 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-02-16 11:35 bugzilla-daemon [this message]
2011-02-16 21:25 ` [Bug 34332] [r300g, bisected] HoN: corruption with tiling and CS ioctl thread offloading bugzilla-daemon
2011-02-16 21:40 ` bugzilla-daemon
2011-02-16 21:53 ` bugzilla-daemon
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