[Bug 99457] Excessive CPU load by the xorg-server and GUI's hard lags

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=99457

--- Comment #21 from Eugenij Shkrigunov <eshkrig at gmail.com> ---
(In reply to Michel Dänzer from comment #20)
> Thanks. Any particular reason for not using sysprof? It would allow saving
> the full profile data and attaching it here, so myself and others could
> analyze it any way we want.

I have experience with OProfile, but do not have to sysprof. Oprofile's data in
the next attachment.


> > Here are the data for the 5 minutes of inactivity of the KDM login screen:
> 
> Does the problem occur at the KDM login screen? The profile data looks like
> there was almost no CPU activity at all. The profile needs to be taken while
> the problem is occurring, just ~10s or so should be enough.

The problem manifests itself all the time while running the Xorg. Even when the
system is idle (KDM) - Xorg process consumes 12-13% CPU. After logging in, CPU
consumption of Xorg increases to 60-80% and is accompanied by a hard lag.

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