From: Ingo Molnar <mingo@kernel.org>
To: Waiman Long <Waiman.Long@hp.com>
Cc: Thomas Gleixner <tglx@linutronix.de>,
Ingo Molnar <mingo@redhat.com>, "H. Peter Anvin" <hpa@zytor.com>,
"Paul E. McKenney" <paulmck@linux.vnet.ibm.com>,
David Howells <dhowells@redhat.com>,
Dave Jones <davej@redhat.com>,
Clark Williams <williams@redhat.com>,
Peter Zijlstra <peterz@infradead.org>,
linux-kernel@vger.kernel.org, x86@kernel.org,
linux-arch@vger.kernel.org, "Chandramouleeswaran,
Aswin" <aswin@hp.com>, Davidlohr Bueso <davidlohr.bueso@hp.com>,
"Norton, Scott J" <scott.norton@hp.com>,
Rik van Riel <riel@redhat.com>
Subject: Re: [PATCH v4 0/4] mutex: Improve mutex performance by doing less atomic-ops & better spinning
Date: Fri, 19 Apr 2013 09:37:31 +0200 [thread overview]
Message-ID: <20130419073731.GD20897@gmail.com> (raw)
In-Reply-To: <1366226594-5506-1-git-send-email-Waiman.Long@hp.com>
* Waiman Long <Waiman.Long@hp.com> wrote:
> v3->v4
> - Merge patch 4 into patch 2
> - Move patch 5 forward to become patch 1
>
> v2->v3
> - Add patch 4 to remove new typedefs introduced in patch 2.
> - Add patch 5 to remove SCHED_FEAT_OWNER_SPIN and move the mutex
> spinning code to mutex.c.
>
> v1->v2
> - Remove the 2 mutex spinner patches and replaced it by another one
> to improve the mutex spinning process.
> - Remove changes made to kernel/mutex.h & localize changes in
> kernel/mutex.c.
> - Add an optional patch to remove architecture specific check in patch
> 1.
The patches look pretty nice now - thanks Waiman. I have applied them to
tip:core/locking and started testing them.
Thanks,
Ingo
prev parent reply other threads:[~2013-04-19 7:45 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-04-17 19:23 [PATCH v4 0/4] mutex: Improve mutex performance by doing less atomic-ops & better spinning Waiman Long
2013-04-17 19:23 ` [PATCH v4 1/4] mutex: Move mutex spinning code from sched/core.c back to mutex.c Waiman Long
2013-04-19 8:57 ` [tip:core/locking] mutex: Move mutex spinning code from sched/ core.c " tip-bot for Waiman Long
2013-04-17 19:23 ` [PATCH v4 2/4] mutex: Make more scalable by doing less atomic operations Waiman Long
2013-04-19 8:58 ` [tip:core/locking] " tip-bot for Waiman Long
2013-04-17 19:23 ` [PATCH v4 3/4] mutex: Queue mutex spinners with MCS lock to reduce cacheline contention Waiman Long
2013-04-18 3:00 ` Davidlohr Bueso
2013-04-19 8:59 ` [tip:core/locking] " tip-bot for Waiman Long
2013-04-17 19:23 ` [PATCH v4 optional 4/4] mutex: back out architecture specific check for negative mutex count Waiman Long
2013-04-19 9:00 ` [tip:core/locking] mutex: Back " tip-bot for Waiman Long
2013-04-19 7:37 ` Ingo Molnar [this message]
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