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Re: F11 rawhide severe X11 latency problems with Radeon

Hi François,

On Sun, Mar 15, 2009 at 11:28:48AM +0100, François Cami wrote:
> > 
> > https://bugzilla.redhat.com/show_bug.cgi?id=486049
> This seems fixed as of today's rawhide on my hardware.
> Emmanuel, can you confirm this is fixed for you too ?

This is most definitely NOT fixed on my hardware. Currently


with the system rebooted after these updates were applied.

As an example of how bad the latency can be at times, trying to scroll
(with the scroll wheel) up and down that bug report using Firefox, the
seconds in the Gnome panel clock applet would only update every 3-4
seconds (i.e. the entire X server output freezes including graph
updates of the system monitor applet).

The CPU is around 95% idle and there is plenty of available memory:

             total       used       free     shared    buffers cached
Mem:       1995644    1897708      97936          0     174068 760532
-/+ buffers/cache:     963108    1032536
Swap:            0          0          0

Only unusual log messages on my system are:

# dmesg:
turning off the locking correctness validator.
__ratelimit: 15 callbacks suppressed

# Xorg.0.log contains about 4 lines of:
(EE) Kensington      Kensington Expert Mouse: Read error: Resource temporarily unavailable

# Other
I don't know if it is relevant, but my trackball is USB and /proc/interrupts shows:
 16:     373507     404690   IO-APIC-fasteoi   uhci_hcd:usb5, radeon

Nothing of note in audit.log


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