[Bug 349992] Re: [945 tiling] Low performance due to no A17 workaround

Mikael Gerdin mikael.gerdin at gmail.com
Thu Apr 16 18:40:08 UTC 2009


With 2.6.30 rc2 and xserver-xorg-video-intel
2:2.6.99.1+git20090416.b9716b83-0ubuntu0tormod from xorg-edgers ppa I
get 1400 fps in glxgears in exa mode with Kwin compositing disabled, and
~700 with compositing enabled. This also helps me work around the
annoying suspend-to-ram crashes I get with UXA and still have good
performance.

lspci -vnn:
00:02.0 VGA compatible controller [0300]: Intel Corporation Mobile 945GM/GMS, 943/940GML Express Integrated Graphics Controller [8086:27a2] (rev 03) (prog-if 00 [VGA controller])
        Subsystem: Dell Device [1028:01d7]
        Flags: bus master, fast devsel, latency 0, IRQ 16
        Memory at eff00000 (32-bit, non-prefetchable) [size=512K]
        I/O ports at eff8 [size=8]
        Memory at d0000000 (32-bit, prefetchable) [size=256M]
        Memory at efec0000 (32-bit, non-prefetchable) [size=256K]
        Capabilities: [90] Message Signalled Interrupts: Mask- 64bit- Queue=0/0 Enable-
        Capabilities: [d0] Power Management version 2
        Kernel modules: intelfb

-- 
[945 tiling] Low performance due to no A17 workaround
https://bugs.launchpad.net/bugs/349992
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