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From: Peter Zijlstra <peterz@infradead.org>
To: Waiman Long <longman@redhat.com>
Cc: Ingo Molnar <mingo@redhat.com>, Will Deacon <will@kernel.org>,
	linux-kernel@vger.kernel.org, Davidlohr Bueso <dave@stgolabs.net>,
	Phil Auld <pauld@redhat.com>
Subject: Re: [PATCH v2 0/5] locking/rwsem: Rework reader optimistic spinning
Date: Tue, 8 Dec 2020 18:02:33 +0100	[thread overview]
Message-ID: <20201208170233.GG2414@hirez.programming.kicks-ass.net> (raw)
In-Reply-To: <77f74f7f-f090-ef3f-11ec-62bc89bd9a83@redhat.com>

On Tue, Dec 08, 2020 at 11:33:38AM -0500, Waiman Long wrote:
> On 12/8/20 9:57 AM, Peter Zijlstra wrote:
> > On Fri, Nov 20, 2020 at 11:14:11PM -0500, Waiman Long wrote:
> > > Waiman Long (5):
> > >    locking/rwsem: Pass the current atomic count to
> > >      rwsem_down_read_slowpath()
> > >    locking/rwsem: Prevent potential lock starvation
> > >    locking/rwsem: Enable reader optimistic lock stealing
> > >    locking/rwsem: Wake up all waiting readers if RWSEM_WAKE_READ_OWNED
> > >    locking/rwsem: Remove reader optimistic spinning
> > So I've munged the lot onto the other rwsem patches and skipped #4, I've
> > not even boot tested them (will go do so shortly).
> > 
> >    git://git.kernel.org/pub/scm/linux/kernel/git/peterz/queue.git locking/core
> > 
> I have checked the four patches in your locking/core branch. They look good
> to me. Are you planning to push the branch to tip soon so that it can be
> ready for the next merge window?

Yeah, provided the robots don't hate on it more than already reported.

  reply	other threads:[~2020-12-08 17:03 UTC|newest]

Thread overview: 21+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-11-21  4:14 [PATCH v2 0/5] locking/rwsem: Rework reader optimistic spinning Waiman Long
2020-11-21  4:14 ` [PATCH v2 1/5] locking/rwsem: Pass the current atomic count to rwsem_down_read_slowpath() Waiman Long
2020-12-09 18:38   ` [tip: locking/core] " tip-bot2 for Waiman Long
2020-11-21  4:14 ` [PATCH v2 2/5] locking/rwsem: Prevent potential lock starvation Waiman Long
2020-11-26  8:12   ` [locking/rwsem] 25d0c60b0e: vm-scalability.throughput 316.2% improvement kernel test robot
2020-12-09 18:38   ` [tip: locking/core] locking/rwsem: Prevent potential lock starvation tip-bot2 for Waiman Long
2020-11-21  4:14 ` [PATCH v2 3/5] locking/rwsem: Enable reader optimistic lock stealing Waiman Long
2020-12-09 18:38   ` [tip: locking/core] " tip-bot2 for Waiman Long
2020-11-21  4:14 ` [PATCH v2 4/5] locking/rwsem: Wake up all waiting readers if RWSEM_WAKE_READ_OWNED Waiman Long
2020-11-24  3:15   ` [locking/rwsem] c9847a7f94: aim7.jobs-per-min -91.8% regression kernel test robot
2020-11-21  4:14 ` [PATCH v2 5/5] locking/rwsem: Remove reader optimistic spinning Waiman Long
2020-11-23 15:53   ` [locking/rwsem] 10a59003d2: unixbench.score -25.5% regression kernel test robot
2020-11-23 19:28     ` Waiman Long
2020-12-08  3:56   ` [PATCH v2 5/5] locking/rwsem: Remove reader optimistic spinning Davidlohr Bueso
2020-12-08 10:07   ` Peter Zijlstra
2020-12-08 15:29     ` Waiman Long
2020-12-09 18:38   ` [tip: locking/core] " tip-bot2 for Waiman Long
2020-12-08 14:57 ` [PATCH v2 0/5] locking/rwsem: Rework " Peter Zijlstra
2020-12-08 16:33   ` Waiman Long
2020-12-08 17:02     ` Peter Zijlstra [this message]
2020-12-08 17:30       ` Waiman Long

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