X server performance down the drain

[Michal Jaegermann]

I my test system I happen to have ATI Radeon VE/7000 QY video card.
Here is a relevant fragment from logs:

(II) RADEON(0): initializing int10
(II) RADEON(0): Primary V_BIOS segment is: 0xc000
(--) RADEON(0): Chipset: "ATI Radeon VE/7000 QY (AGP/PCI)" (ChipID = 0x5159)
(--) RADEON(0): Linear framebuffer at 0xf0000000
(--) RADEON(0): VideoRAM: 65536 kByte (64 bit SDR SDRAM)
(II) RADEON(0): PCI card detected

and later on

(II) RADEON(0): [drm] installed DRM signal handler
(II) RADEON(0): [DRI] installation complete
(II) RADEON(0): [drm] Added 32 65536 byte vertex/indirect buffers
(II) RADEON(0): [drm] Mapped 32 vertex/indirect buffers
(II) RADEON(0): [drm] dma control initialized, using IRQ 201
(II) RADEON(0): [drm] Initialized kernel GART heap manager, 5111808
(II) RADEON(0): Direct rendering enabled

So everything looks fine. Right?  The only catch is that with the
original XFree86 from FC2t1 'glxgears' were reporting, with a
default window size, around 100 fps.  After a switch to xorg-x11
this initially went down to 50 fps and with the current
xorg-x11-0.6.6-0.2004_03_30.1 I got whopping 14 fps.  Yes,
fourteen!  Just for laughs I tried to see what will happen with
'tuxracer' and I had a serious trouble trying to quit as getting a
mouse pointer into the right area was an "interesting" exercise.

Does anybody else is seeing something like that? And what gives?
Bugzilla time?

I also happen to have RH9 installation on the same machine
with XFree86-4.3.0-2.90.55.  There I am getting a complaint from
Xlib: extension "XFree86-DRI" missing on display ":0.0"
and "Direct rendering disabled" but 'glxgears' show 112 fps.
Something does not compute.

  Michal