Re: [RFC] [PATCH 0/5] Teach perf tool to profile sleep times (V4)

From: Arun Sharma
Date: Mon Jun 04 2012 - 13:02:49 EST


On 6/4/12 5:40 AM, Peter Zijlstra wrote:

And as a result you need that hideous prev_state crap.


Would something like the below work?

The one thing I'm not entirely sure of is if this is a sekjoerity issue
or not.. anybody? I would think a task was entitled to know who woke it
and wherefrom etc..

Frederic had some comments on this topic in the last round:

http://thread.gmane.org/gmane.linux.kernel/1195368/focus=1195959

> We should probably avoid the remote callchains, sounds like asking for complications everywhere.

Do they still apply? Frederic?

-Arun
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