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Re: [RFC][PATCH 0/5] Reduce runqueue lock contention -v2

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From: Peter Zijlstra
Subject: Re: [RFC][PATCH 0/5] Reduce runqueue lock contention -v2
Date: Thursday, December 16, 2010 - 12:42 pm

On Thu, 2010-12-16 at 11:39 -0800, Frank Rowand wrote:

So first you bounce the wakeup to the previous task cpu, when you do
select_task_rq() and then you bounce it to the new target?


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Messages in current thread:
[RFC][PATCH 0/5] Reduce runqueue lock contention -v2, Peter Zijlstra, (Thu Dec 16, 7:56 am)
[RFC][PATCH 1/5] sched: Always provide p->oncpu, Peter Zijlstra, (Thu Dec 16, 7:56 am)
[RFC][PATCH 2/5] mutex: Use p->oncpu for the adaptive spin, Peter Zijlstra, (Thu Dec 16, 7:56 am)
[RFC][PATCH 3/5] sched: Change the ttwu success details, Peter Zijlstra, (Thu Dec 16, 7:56 am)
[RFC][PATCH 4/5] sched: Clean up ttwu stats, Peter Zijlstra, (Thu Dec 16, 7:56 am)
[RFC][PATCH 5/5] sched: Reduce ttwu rq->lock contention, Peter Zijlstra, (Thu Dec 16, 7:56 am)
Re: [RFC][PATCH 3/5] sched: Change the ttwu success details, Frederic Weisbecker, (Thu Dec 16, 8:23 am)
Re: [RFC][PATCH 3/5] sched: Change the ttwu success details, Peter Zijlstra, (Thu Dec 16, 8:27 am)
Re: [RFC][PATCH 3/5] sched: Change the ttwu success details, Peter Zijlstra, (Thu Dec 16, 8:30 am)
Re: [RFC][PATCH 5/5] sched: Reduce ttwu rq->lock contention, Frederic Weisbecker, (Thu Dec 16, 8:31 am)
Re: [RFC][PATCH 3/5] sched: Change the ttwu success details, Frederic Weisbecker, (Thu Dec 16, 8:35 am)
Re: [RFC][PATCH 3/5] sched: Change the ttwu success details, Frederic Weisbecker, (Thu Dec 16, 8:45 am)
Re: [RFC][PATCH 2/5] mutex: Use p->oncpu for the adaptive spin, Oleg Nesterov, (Thu Dec 16, 10:34 am)
Re: [RFC][PATCH 5/5] sched: Reduce ttwu rq->lock contention, Oleg Nesterov, (Thu Dec 16, 10:58 am)
Re: [RFC][PATCH 5/5] sched: Reduce ttwu rq->lock contention, Oleg Nesterov, (Thu Dec 16, 11:42 am)
Re: [RFC][PATCH 5/5] sched: Reduce ttwu rq->lock contention, Peter Zijlstra, (Thu Dec 16, 11:58 am)
Re: [RFC][PATCH 5/5] sched: Reduce ttwu rq->lock contention, Peter Zijlstra, (Thu Dec 16, 12:03 pm)
Re: [RFC][PATCH 0/5] Reduce runqueue lock contention -v2, Frank Rowand, (Thu Dec 16, 12:12 pm)
Re: [RFC][PATCH 2/5] mutex: Use p->oncpu for the adaptive spin, Peter Zijlstra, (Thu Dec 16, 12:29 pm)
Re: [RFC][PATCH 0/5] Reduce runqueue lock contention -v2, Frank Rowand, (Thu Dec 16, 12:36 pm)
Re: [RFC][PATCH 0/5] Reduce runqueue lock contention -v2, Frank Rowand, (Thu Dec 16, 12:36 pm)
Re: [RFC][PATCH 0/5] Reduce runqueue lock contention -v2, Frank Rowand, (Thu Dec 16, 12:39 pm)
Re: [RFC][PATCH 0/5] Reduce runqueue lock contention -v2, Peter Zijlstra, (Thu Dec 16, 12:42 pm)
Re: [RFC][PATCH 5/5] sched: Reduce ttwu rq->lock contention, Peter Zijlstra, (Thu Dec 16, 12:47 pm)
Re: [RFC][PATCH 5/5] sched: Reduce ttwu rq->lock contention, Peter Zijlstra, (Thu Dec 16, 1:32 pm)
Re: [RFC][PATCH 0/5] Reduce runqueue lock contention -v2, Frank Rowand, (Thu Dec 16, 1:45 pm)
Re: [RFC][PATCH 5/5] sched: Reduce ttwu rq->lock contention, Yan, Zheng, (Thu Dec 16, 8:06 pm)
Re: [RFC][PATCH 5/5] sched: Reduce ttwu rq->lock contention, Peter Zijlstra, (Fri Dec 17, 6:23 am)
Re: [RFC][PATCH 5/5] sched: Reduce ttwu rq->lock contention, Oleg Nesterov, (Fri Dec 17, 9:54 am)
Re: [RFC][PATCH 5/5] sched: Reduce ttwu rq->lock contention, Peter Zijlstra, (Fri Dec 17, 10:43 am)
Re: [RFC][PATCH 5/5] sched: Reduce ttwu rq->lock contention, Oleg Nesterov, (Fri Dec 17, 10:50 am)
Re: [RFC][PATCH 5/5] sched: Reduce ttwu rq->lock contention, Peter Zijlstra, (Fri Dec 17, 11:15 am)
Re: [RFC][PATCH 5/5] sched: Reduce ttwu rq->lock contention, Oleg Nesterov, (Fri Dec 17, 11:21 am)
Re: [RFC][PATCH 5/5] sched: Reduce ttwu rq->lock contention, Peter Zijlstra, (Fri Dec 17, 11:24 am)
Re: [RFC][PATCH 5/5] sched: Reduce ttwu rq->lock contention, Peter Zijlstra, (Fri Dec 17, 11:41 am)
Re: [RFC][PATCH 2/5] mutex: Use p->oncpu for the adaptive spin, Oleg Nesterov, (Fri Dec 17, 12:17 pm)
Re: [RFC][PATCH 5/5] sched: Reduce ttwu rq->lock contention, Oleg Nesterov, (Fri Dec 17, 12:28 pm)
Re: [RFC][PATCH 5/5] sched: Reduce ttwu rq->lock contention, Peter Zijlstra, (Fri Dec 17, 2:02 pm)
Re: [RFC][PATCH 1/5] sched: Always provide p->oncpu, Frank Rowand, (Fri Dec 17, 6:03 pm)
Re: [RFC][PATCH 3/5] sched: Change the ttwu success details, Frank Rowand, (Fri Dec 17, 6:05 pm)
Re: [RFC][PATCH 4/5] sched: Clean up ttwu stats, Frank Rowand, (Fri Dec 17, 6:09 pm)
Re: [RFC][PATCH 5/5] sched: Reduce ttwu rq->lock contention, Yong Zhang, (Sat Dec 18, 7:49 am)
Re: [RFC][PATCH 5/5] sched: Reduce ttwu rq->lock contention, Oleg Nesterov, (Sat Dec 18, 1:08 pm)
Re: [RFC][PATCH 5/5] sched: Reduce ttwu rq->lock contention, Yong Zhang, (Sun Dec 19, 4:20 am)