Re: [patch] voluntary-preempt-2.6.8.1-P6

Ingo Molnar
2004-08-21T09:25:28Z

* Lee Revell <rlrevell@joe-job.com> wrote:

> Here's a 171 usec latency from ext3_free_blocks:
>
> preemption latency trace v1.0.1
> -------------------------------
> latency: 171 us, entries: 2 (2)
> -----------------
> | task: evolution/863, uid:1000 nice:0 policy:0 rt_prio:0
> -----------------
> => started at: ext3_free_blocks+0x1d0/0x4b0
> => ended at: ext3_free_blocks+0x229/0x4b0
> =======>
> 00000001 0.000ms (+0.000ms): ext3_free_blocks (ext3_free_data)
> 00000001 0.167ms (+0.167ms): sub_preempt_count (ext3_free_blocks)

ok, i broke this lock in my tree, will show up in -P7.

Ingo