Re: [PATCH 0/8] perf sched: Add trace event for sched wait.

[Dongsheng Yang]

On 04/15/2014 10:54 PM, Peter Zijlstra wrote:
> On Tue, Apr 15, 2014 at 09:32:49PM +0900, Dongsheng Yang wrote:
> > But about 3, we have no trace event for it.
> We do, sched_switch() includes the previous task state. Also there's
> tons more than a waitqueue you can get stuck in.
Okey, prev_state is designed to trace No. 3 situation, but it seems
not working well now from my test result. I will look into it and dig
the reason out. Thanx for your help.
> .

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