From: "Paul E. McKenney" <paulmck@linux.vnet.ibm.com>
To: Davidlohr Bueso <dave@stgolabs.net>
Cc: Tim Chen <tim.c.chen@linux.intel.com>,
Ding Tianhong <dingtianhong@huawei.com>,
Peter Zijlstra <peterz@infradead.org>,
Ingo Molnar <mingo@redhat.com>,
"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
Linus Torvalds <torvalds@linux-foundation.org>,
Thomas Gleixner <tglx@linutronix.de>,
Will Deacon <Will.Deacon@arm.com>, Jason Low <jason.low2@hp.com>,
Waiman Long <Waiman.Long@hp.com>
Subject: Re: [PATCH RFC] locking/mutexes: don't spin on owner when wait list is not NULL.
Date: Thu, 21 Jan 2016 19:13:24 -0800 [thread overview]
Message-ID: <20160122031324.GI3818@linux.vnet.ibm.com> (raw)
In-Reply-To: <20160122024854.GB23224@linux-uzut.site>
On Thu, Jan 21, 2016 at 06:48:54PM -0800, Davidlohr Bueso wrote:
> On Thu, 21 Jan 2016, Paul E. McKenney wrote:
>
> >I did some testing, which exposed it to the 0day test robot, which
> >did note some performance differences. I was hoping that it would
> >clear up some instability from other patches, but no such luck. ;-)
>
> Oh, that explains why we got a performance regression report :)
Plus I suspected that you wanted some extra email. ;-)
Thanx, Paul
next prev parent reply other threads:[~2016-01-22 3:13 UTC|newest]
Thread overview: 37+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-01-21 9:29 [PATCH RFC] locking/mutexes: don't spin on owner when wait list is not NULL Ding Tianhong
2016-01-21 21:23 ` Tim Chen
2016-01-22 2:41 ` Paul E. McKenney
2016-01-22 2:48 ` Davidlohr Bueso
2016-01-22 3:13 ` Paul E. McKenney [this message]
2016-01-21 23:02 ` Waiman Long
2016-01-22 6:09 ` Davidlohr Bueso
2016-01-22 13:38 ` Waiman Long
2016-01-22 16:46 ` Davidlohr Bueso
2016-01-25 2:23 ` [PATCH] locking/mutex: Allow next waiter lockless wakeup Davidlohr Bueso
2016-01-25 23:02 ` Waiman Long
2016-02-29 11:21 ` [tip:locking/core] " tip-bot for Davidlohr Bueso
2016-01-22 8:54 ` [PATCH RFC] locking/mutexes: don't spin on owner when wait list is not NULL Peter Zijlstra
2016-01-22 10:20 ` Jason Low
2016-01-22 10:53 ` Peter Zijlstra
2016-01-22 10:56 ` Peter Zijlstra
2016-01-22 11:06 ` Peter Zijlstra
2016-01-22 13:59 ` Waiman Long
2016-01-24 8:03 ` Ding Tianhong
2016-01-29 9:53 ` Peter Zijlstra
2016-01-30 1:18 ` Ding Tianhong
2016-02-01 3:29 ` huang ying
2016-02-01 3:35 ` Huang, Ying
2016-02-01 10:08 ` [PATCH] locking/mutex: Avoid spinner vs waiter starvation Peter Zijlstra
2016-02-02 21:19 ` Davidlohr Bueso
2016-02-03 7:10 ` Ding Tianhong
2016-02-03 19:24 ` Davidlohr Bueso
2016-02-04 1:20 ` Ding Tianhong
2016-02-12 18:33 ` Waiman Long
2016-02-03 22:07 ` Waiman Long
2016-02-04 1:35 ` Jason Low
2016-02-04 8:55 ` huang ying
2016-02-04 22:49 ` Jason Low
2016-01-22 13:41 ` [PATCH RFC] locking/mutexes: don't spin on owner when wait list is not NULL Waiman Long
-- strict thread matches above, loose matches on Subject: below --
2016-01-21 6:53 [PATCH RFC ] " Ding Tianhong
2016-01-21 7:29 ` Ingo Molnar
2016-01-21 9:04 ` Ding Tianhong
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