Re: [patch] CFS scheduler, -v18

From: Vegard Nossum
Date: Tue Jul 03 2007 - 05:12:10 EST


On 7/3/07, Ingo Molnar <mingo@xxxxxxx> wrote:
does it still get more CPU time than you'd expect it to get? A reniced
or SCHED_IDLE task will 'fill in' any idle time that it senses, so in
itself it's not an anomaly if a task gets 50% and FEH fills in the
remaining 50%. Does it still get CPU time if you start two CPU hogs:

for (( N=0; N < 2; N++ )); do ( while :; do :; done ) & done

? If yes, that would be an anomaly.

No, with this test, it gets the expected amount of CPU. Thanks for
clearing it up!

Vegard
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/