linux-kernel - Re: [RFC][PATCH 0/7] perf trace: general-purpose scripting support, v2

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Message-ID: <1259137695.4027.45.camel@laptop>
Date:	Wed, 25 Nov 2009 09:28:15 +0100
From:	Peter Zijlstra <peterz@...radead.org>
To:	Tom Zanussi <tzanussi@...il.com>
Cc:	linux-kernel@...r.kernel.org, mingo@...e.hu, fweisbec@...il.com,
	rostedt@...dmis.org, anton@...ba.org, hch@...radead.org,
	Mike Galbraith <efault@....de>
Subject: Re: [RFC][PATCH 0/7] perf trace: general-purpose scripting
 support, v2

On Wed, 2009-11-25 at 01:15 -0600, Tom Zanussi wrote:
> sched::sched_wakeup      0 01238.657997033     6183 firefox              comm=firefox, pid=6199, prio=120, success=1, target_cpu=1
> sched::sched_switch      1 01238.657991740     7140 firefox              prev_comm=firefox, prev_pid=7140, prev_prio=120, prev_state=S, next_comm=firefox, next_pid=6199, next_prio=120
> 
> min_wakeup_latency: -5293 

Looks like we missed a clock update on the cross cpu wakeup, Mike was
busy plugging those holes -- I've been starting at a patch that might
cure this (amongst other things).



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