Poor Xorg performance in Etch
Hello:
I recently installed Etch on my new system and found X performance to be
sluggish, particularly when using Iceape. It appears as if there is little or
no hardware acceleration, remeniscent of a K7 with a slow graphics card. While
scrolling a web page down (but never up), or moving windows the display
sometimes freezes for about one second or more, with up to 100% CPU utilization.
My hardware is a K8M800 chipset motherboard with an Athlon64 X2 5000+ and Radeon
7500. I have tested all recent kernels up to and including linux 2.6.23-rc3.
All kernel and enabled X performance options are enabled, e.g. DRI, GLX, AGP,
on-CPU GART, color tiling. The same graphics card had much better performance
with Sarge even without acceleration.
Some system-specific details follow:
lspci
00:00.0 Host bridge: VIA Technologies, Inc. K8M800 Host Bridge
00:00.1 Host bridge: VIA Technologies, Inc. K8M800 Host Bridge
00:00.2 Host bridge: VIA Technologies, Inc. K8M800 Host Bridge
00:00.3 Host bridge: VIA Technologies, Inc. K8M800 Host Bridge
00:00.4 Host bridge: VIA Technologies, Inc. K8M800 Host Bridge
00:00.7 Host bridge: VIA Technologies, Inc. K8M800 Host Bridge
00:01.0 PCI bridge: VIA Technologies, Inc. VT8237 PCI bridge [K8T800/K8T890 South]
00:09.0 Multimedia video controller: Internext Compression Inc iTVC16 (CX23416)
MPEG-2 Encoder (rev 01)
00:0a.0 Multimedia video controller: Internext Compression Inc iTVC16 (CX23416)
MPEG-2 Encoder (rev 01)
00:0f.0 IDE interface: VIA Technologies, Inc. VIA VT6420 SATA RAID Controller
(rev 80)
00:0f.1 IDE interface: VIA Technologies, Inc.
VT82C586A/B/VT82C686/A/B/VT823x/A/C PIPC Bus Master IDE (rev 06)
00:10.0 USB Controller: VIA Technologies, Inc. VT82xxxxx UHCI USB 1.1 Controller
(rev 81)
00:10.1 USB Controller: VIA Technologies, Inc. VT82xxxxx UHCI USB 1.1 Controller
(rev 81)
00:10.2 USB Controller: VIA Technologies, Inc. VT82xxxxx UHCI USB 1.1 Controller
(rev 81)
00:10.3 USB Controller: VIA Technologies, Inc. VT82xxxxx UHCI USB 1.1 Controller
(rev 81)
00:10.4 USB Controller: VIA Technologies, Inc. USB 2.0 (rev 86)
00:11.0 ISA bridge: VIA Technologies, Inc. VT8237 ISA bridge
[KT600/K8T800/K8T890 South]
00:11.5 Multimedia audio controller: VIA Technologies, Inc. VT8233/A/8235/8237
AC97 Audio Controller (rev 60)
00:12.0 Ethernet controller: VIA Technologies, Inc. VT6102 [Rhine-II] (rev 78)
00:18.0 Host bridge: Advanced Micro Devices [AMD] K8 [Athlon64/Opteron]
HyperTransport Technology Configuration
00:18.1 Host bridge: Advanced Micro Devices [AMD] K8 [Athlon64/Opteron] Address Map
00:18.2 Host bridge: Advanced Micro Devices [AMD] K8 [Athlon64/Opteron] DRAM
Controller
00:18.3 Host bridge: Advanced Micro Devices [AMD] K8 [Athlon64/Opteron]
Miscellaneous Control
01:00.0 VGA compatible controller: ATI Technologies Inc Radeon RV200 QW [Radeon
7500]
grep enabled /var/log/Xorg.0.log
(==) AIGLX enabled
(II) RADEON(0): Color tiling enabled by default
(**) RADEON(0): Backing store enabled
(II) RADEON(0): Direct rendering enabled
(II) RADEON(0): Render acceleration enabled
(II) RADEON(0): Acceleration enabled
(**) RADEON(0): DPMS enabled
(==) RADEON(0): Silken mouse enabled
(==) RandR enabled
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