Re: [patch] voluntary-preempt-2.6.8.1-P1

Lee Revell
2004-08-16T05:48:25Z

On Mon, 2004-08-16 at 01:02, Ingo Molnar wrote:
> yeah. If it's the first chunk then we could perhaps avoid it by doing it
> outside of the lock.
>

Hmm, this is odd:

preemption latency trace v1.0
-----------------------------
latency: 71 us, entries: 6 (6)
process: XFree86/518, uid: 0
nice: -10, policy: 0, rt_priority: 0
=======>
0.000ms (+0.000ms): sched_clock (schedule)
0.000ms (+0.000ms): deactivate_task (schedule)
0.000ms (+0.000ms): dequeue_task (deactivate_task)
0.001ms (+0.000ms): __switch_to (schedule)
0.068ms (+0.066ms): finish_task_switch (schedule)
0.069ms (+0.000ms): check_preempt_timing (sub_preempt_count)

Lee