very slow performance of glxgears (68 fps)

[Eric Anholt]

On Fri, 2009-01-30 at 21:28 +0000, Panagiotis Archondis wrote:
> Hi there, I have the following system
> 
> # lspci
> 00:00.0 Host bridge: Intel Corporation 82Q35 Express DRAM Controller
> (rev 02)
> 00:02.0 VGA compatible controller: Intel Corporation 82Q35 Express
> Integrated Graphics Controller (rev 02)
> 00:02.1 Display controller: Intel Corporation 82Q35 Express Integrated
> Graphics Controller (rev 02)
> 00:03.0 Communication controller: Intel Corporation 82Q35 Express MEI
> Controller (rev 02)
> 00:03.2 IDE interface: Intel Corporation 82Q35 Express PT IDER
> Controller (rev 02)
> 00:03.3 Serial controller: Intel Corporation 82Q35 Express Serial KT
> Controller (rev 02)
> 00:19.0 Ethernet controller: Intel Corporation 82566DM-2 Gigabit
> Network Connection (rev 02)
> 00:1a.0 USB Controller: Intel Corporation 82801I (ICH9 Family) USB
> UHCI Controller #4 (rev 02)
> 00:1a.1 USB Controller: Intel Corporation 82801I (ICH9 Family) USB
> UHCI Controller #5 (rev 02)
> 00:1a.7 USB Controller: Intel Corporation 82801I (ICH9 Family) USB2
> EHCI Controller #2 (rev 02)
> 00:1b.0 Audio device: Intel Corporation 82801I (ICH9 Family) HD Audio
> Controller (rev 02)
> 00:1c.0 PCI bridge: Intel Corporation 82801I (ICH9 Family) PCI Express
> Port 1 (rev 02)
> 00:1d.0 USB Controller: Intel Corporation 82801I (ICH9 Family) USB
> UHCI Controller #1 (rev 02)
> 00:1d.1 USB Controller: Intel Corporation 82801I (ICH9 Family) USB
> UHCI Controller #2 (rev 02)
> 00:1d.2 USB Controller: Intel Corporation 82801I (ICH9 Family) USB
> UHCI Controller #3 (rev 02)
> 00:1d.7 USB Controller: Intel Corporation 82801I (ICH9 Family) USB2
> EHCI Controller #1 (rev 02)
> 00:1e.0 PCI bridge: Intel Corporation 82801 PCI Bridge (rev 92)
> 00:1f.0 ISA bridge: Intel Corporation 82801IO (ICH9DO) LPC Interface
> Controller (rev 02)
> 00:1f.2 SATA controller: Intel Corporation 82801IR/IO/IH (ICH9R/DO/DH)
> 6 port SATA AHCI Controller (rev 02)
> 00:1f.3 SMBus: Intel Corporation 82801I (ICH9 Family) SMBus Controller
> (rev 02)
> 
> 
> $ glxinfo | grep direct
> Failed to initialize TTM buffer manager.  Falling back to classic.
> direct rendering: Yes
> 
> $ uname -a
> Linux localhost 2.6.27-sabayon #1 SMP Sat Dec 20 16:16:56 UTC 2008
> i686 Intel(R) Core(TM)2 Duo CPU E6850 @ 3.00GHz GenuineIntel GNU/Linux
> 
> $ glxgears
> Failed to initialize TTM buffer manager.  Falling back to classic.
> 300 frames in 5.0 seconds = 59.884 FPS
> 299 frames in 5.0 seconds = 59.621 FPS
> 300 frames in 5.0 seconds = 59.818 FPS

glxgears is not a benchmark.

We sync to vblank because running glxgears at 1000fps is dumb.

-- 
Eric Anholt
eric at anholt.net                         eric.anholt at intel.com


-------------- next part --------------
A non-text attachment was scrubbed...
Name: signature.asc
Type: application/pgp-signature
Size: 197 bytes
Desc: This is a digitally signed message part
URL: <http://lists.x.org/archives/xorg/attachments/20090130/7b6b8762/attachment.pgp>