Re: Xorg process priority relative to applications causing apparent desktop lockup

[Nicolas George <george@nsup.org>]

Glen Wetzel (HE12025-07-26):
> 1.* Tried this command on an xterm:
> 
>     $ for i in $(seq 50) ; do openssl speed & done
> 
> Whether the renice was applied to the Xorg task or not, the screen does not
> lock up and I can successfully pkill.  So, no problem.

Nice.

> *3.* The problem observed is consistent of having the windowing system task
> (Xorg) being run at the same or less priority than the applications under
> the windowing system.

No, it is not: you had xterm and it subprocess eating all your CPU and
nothing happened.

> Last night I was lucky to capture some evidence that exemplifies the
> problem.  I left the machine with a renice higher Xorg priority  (top value
> 8).  The next morning, it can be seen that the chromium window became
> non-responsive and would draw a replicated image mess from other windows
> when mousing over. However, the windowing system remained responsive.  See
> screenshot.

This is not normal and proves that what you propose is not a fix but
just a partial countermeasure.

> On 7/25/25 4:04 AM, Nicolas George wrote:

Top-posting is contrary to the etiquette of this list.

Regards,

-- 
  Nicolas George