Ingo Molnar wrote:
well, i just simulated a runaway X at nice -19 on CFS (on a UP box), and
while the box was a tad laggy, i was able to killall it without
problems, within 2 seconds that also included a 'su'. So it's not an
issue in CFS, it can be turned off, and because every distro has another
way to renice Xorg, this is a convenience hack until Xorg standardizes
it into some xorg.conf field. (It also makes sure that X isnt preempted
by other userspace stuff while it does timing-sensitive operations like
setting the video modes up or switching video modes, etc.)
Good!
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