From: Peter Zijlstra <peterz@infradead.org>
To: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Chris Mason <chris.mason@oracle.com>,
Frank Rowand <frank.rowand@am.sony.com>,
Ingo Molnar <mingo@elte.hu>, Thomas Gleixner <tglx@linutronix.de>,
Mike Galbraith <efault@gmx.de>, Oleg Nesterov <oleg@redhat.com>,
Paul Turner <pjt@google.com>, Jens Axboe <axboe@kernel.dk>,
linux-kernel@vger.kernel.org
Subject: Re: [RFC][PATCH 3/5] sched: Change the ttwu success details
Date: Thu, 16 Dec 2010 16:30:15 +0100 [thread overview]
Message-ID: <1292513415.6803.4604.camel@twins> (raw)
In-Reply-To: <1292513275.6803.4603.camel@twins>
On Thu, 2010-12-16 at 16:27 +0100, Peter Zijlstra wrote:
> On Thu, 2010-12-16 at 16:23 +0100, Frederic Weisbecker wrote:
>
> > > - TP_printk("comm=%s pid=%d prio=%d success=%d target_cpu=%03d",
> > > + TP_printk("comm=%s pid=%d prio=%d target_cpu=%03d",
> > > __entry->comm, __entry->pid, __entry->prio,
> > > - __entry->success, __entry->target_cpu)
> > > + __entry->target_cpu)
> >
> > Note we'll need to fix some perf scripts after that. And also perf sched,
> > probably perf timechart and so on...
>
> Do any of those actually use the success parameter? If not, then me
> removing it shouldn't break those tools since they're supposed to parse
> the format stuff and not notice it missing ;-)
Alternatively we could always call trace_sched_wakeup() and make success
reflect actual wakeup success.
next prev parent reply other threads:[~2010-12-16 15:31 UTC|newest]
Thread overview: 44+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-12-16 14:56 [RFC][PATCH 0/5] Reduce runqueue lock contention -v2 Peter Zijlstra
2010-12-16 14:56 ` [RFC][PATCH 1/5] sched: Always provide p->oncpu Peter Zijlstra
2010-12-18 1:03 ` Frank Rowand
2010-12-16 14:56 ` [RFC][PATCH 2/5] mutex: Use p->oncpu for the adaptive spin Peter Zijlstra
2010-12-16 17:34 ` Oleg Nesterov
2010-12-16 19:29 ` Peter Zijlstra
2010-12-17 19:17 ` Oleg Nesterov
2010-12-16 14:56 ` [RFC][PATCH 3/5] sched: Change the ttwu success details Peter Zijlstra
2010-12-16 15:23 ` Frederic Weisbecker
2010-12-16 15:27 ` Peter Zijlstra
2010-12-16 15:30 ` Peter Zijlstra [this message]
2010-12-16 15:45 ` Frederic Weisbecker
2010-12-16 15:35 ` Frederic Weisbecker
2010-12-18 1:05 ` Frank Rowand
2010-12-16 14:56 ` [RFC][PATCH 4/5] sched: Clean up ttwu stats Peter Zijlstra
2010-12-18 1:09 ` Frank Rowand
2010-12-16 14:56 ` [RFC][PATCH 5/5] sched: Reduce ttwu rq->lock contention Peter Zijlstra
2010-12-16 15:31 ` Frederic Weisbecker
2010-12-16 17:58 ` Oleg Nesterov
2010-12-16 18:42 ` Oleg Nesterov
2010-12-16 18:58 ` Peter Zijlstra
2010-12-16 19:03 ` Peter Zijlstra
2010-12-16 19:47 ` Peter Zijlstra
2010-12-16 20:32 ` Peter Zijlstra
2010-12-17 3:06 ` Yan, Zheng
2010-12-17 13:23 ` Peter Zijlstra
2010-12-17 16:54 ` Oleg Nesterov
2010-12-17 17:43 ` Peter Zijlstra
2010-12-17 18:15 ` Peter Zijlstra
2010-12-17 19:28 ` Oleg Nesterov
2010-12-17 21:02 ` Peter Zijlstra
2010-12-18 14:49 ` Yong Zhang
2010-12-18 20:08 ` Oleg Nesterov
2010-12-19 11:20 ` Yong Zhang
2010-12-17 18:21 ` Oleg Nesterov
2010-12-17 17:50 ` Oleg Nesterov
2010-12-17 18:24 ` Peter Zijlstra
2010-12-17 18:41 ` Peter Zijlstra
2010-12-16 19:12 ` [RFC][PATCH 0/5] Reduce runqueue lock contention -v2 Frank Rowand
2010-12-16 19:36 ` Frank Rowand
2010-12-16 19:39 ` Frank Rowand
2010-12-16 19:42 ` Peter Zijlstra
2010-12-16 20:45 ` Frank Rowand
2010-12-16 19:36 ` Frank Rowand
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