From: Linus Torvalds <torvalds@linux-foundation.org>
To: Peter Zijlstra <peterz@infradead.org>
Cc: Ingo Molnar <mingo@elte.hu>,
"Paul E. McKenney" <paulmck@linux.vnet.ibm.com>,
Gregory Haskins <ghaskins@novell.com>,
Matthew Wilcox <matthew@wil.cx>, Andi Kleen <andi@firstfloor.org>,
Chris Mason <chris.mason@oracle.com>,
Andrew Morton <akpm@linux-foundation.org>,
Linux Kernel Mailing List <linux-kernel@vger.kernel.org>,
linux-fsdevel <linux-fsdevel@vger.kernel.org>,
linux-btrfs <linux-btrfs@vger.kernel.org>,
Thomas Gleixner <tglx@linutronix.de>,
Nick Piggin <npiggin@suse.de>,
Peter Morreale <pmorreale@novell.com>,
Sven Dietrich <SDietrich@novell.com>,
Dmitry Adamushko <dmitry.adamushko@gmail.com>
Subject: Re: [PATCH -v9][RFC] mutex: implement adaptive spinning
Date: Tue, 13 Jan 2009 08:49:27 -0800 (PST) [thread overview]
Message-ID: <alpine.LFD.2.00.0901130846320.6528@localhost.localdomain> (raw)
In-Reply-To: <1231864854.7141.8.camel@twins>
On Tue, 13 Jan 2009, Peter Zijlstra wrote:
>
> Ok, tested only 1, but that was the one I remember lockups from -- and
> that seems to be good with the cmpxchg.
>
> Do you fancy me sending v10 or will you make that change locally?
I'd like to get this in, but I'm not going to apply it in any case without
way more testing.
It missed the merge window, but I'm potentially willing to let it slip in
- but only if there are a fair number of people willing to do numbers and
some harsh testing. Preferably people who did see problems earlier, ie at
a minimum Chris and Ingo under the loads they used before and saw issues
with.
So do a v10, and ask people to test.
Linus
next prev parent reply other threads:[~2009-01-13 16:49 UTC|newest]
Thread overview: 92+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-01-12 15:37 [PATCH -v8][RFC] mutex: implement adaptive spinning Peter Zijlstra
2009-01-12 16:04 ` Linus Torvalds
2009-01-12 16:20 ` Linus Torvalds
2009-01-12 16:45 ` Chris Mason
2009-01-12 16:50 ` Peter Zijlstra
2009-01-12 17:14 ` Chris Mason
2009-01-12 17:24 ` Peter Zijlstra
2009-01-12 17:30 ` Chris Mason
2009-01-12 17:16 ` Peter Zijlstra
2009-01-12 17:33 ` Boaz Harrosh
2009-01-12 18:07 ` Peter Zijlstra
2009-01-12 16:13 ` Avi Kivity
2009-01-12 17:13 ` Peter Zijlstra
2009-01-12 17:23 ` Avi Kivity
2009-01-12 17:32 ` Avi Kivity
2009-01-14 16:46 ` Peter Zijlstra
2009-01-14 17:04 ` Nick Piggin
2009-01-14 17:23 ` Avi Kivity
2009-01-15 0:50 ` Nick Piggin
2009-01-13 15:15 ` [PATCH -v9][RFC] " Peter Zijlstra
2009-01-13 16:16 ` Linus Torvalds
2009-01-13 16:21 ` Peter Zijlstra
2009-01-13 16:39 ` Ingo Molnar
2009-01-13 16:40 ` Peter Zijlstra
2009-01-13 16:49 ` Linus Torvalds [this message]
2009-01-13 17:21 ` Peter Zijlstra
2009-01-13 18:33 ` Ingo Molnar
2009-01-13 18:40 ` Linus Torvalds
2009-01-13 19:01 ` Ingo Molnar
2009-01-14 2:58 ` Chris Mason
2009-01-14 11:18 ` Dmitry Adamushko
2009-01-14 16:47 ` Chris Mason
2009-01-14 17:32 ` Dmitry Adamushko
2009-01-14 11:21 ` Ingo Molnar
2009-01-14 15:43 ` Linus Torvalds
2009-01-14 16:23 ` Chris Mason
2009-01-14 17:06 ` [PATCH -v11 delta] " Ingo Molnar
2009-01-14 17:00 ` [PATCH -v11][RFC] " Peter Zijlstra
2009-01-14 17:18 ` Nick Piggin
2009-01-14 17:22 ` Peter Zijlstra
2009-01-15 0:46 ` Nick Piggin
2009-01-15 7:44 ` Peter Zijlstra
2009-01-15 7:52 ` Nick Piggin
2009-01-14 18:33 ` [GIT PULL] adaptive spinning mutexes Ingo Molnar
2009-01-14 18:40 ` Chris Mason
2009-01-15 9:53 ` Ingo Molnar
2009-01-14 18:47 ` Ingo Molnar
2009-01-14 19:28 ` Ingo Molnar
2009-01-15 17:44 ` Matthew Wilcox
2009-01-15 18:05 ` Linus Torvalds
2009-01-15 18:08 ` Ingo Molnar
2009-01-15 18:16 ` Linus Torvalds
2009-01-15 19:26 ` Chris Mason
2009-01-15 20:13 ` Linus Torvalds
2009-01-15 21:04 ` Chris Mason
2009-01-15 22:03 ` Ingo Molnar
2009-01-16 13:32 ` Folkert van Heusden
2009-01-16 13:57 ` Folkert van Heusden
2009-01-16 18:37 ` Bill Davidsen
2009-01-16 0:53 ` Paul E. McKenney
2009-01-16 1:01 ` Linus Torvalds
2009-01-16 1:34 ` Paul E. McKenney
2009-01-16 14:07 ` Folkert van Heusden
2009-01-16 3:03 ` Nick Piggin
2009-01-15 18:06 ` Ingo Molnar
2009-01-14 18:53 ` Andrew Morton
2009-01-14 19:00 ` Ingo Molnar
2009-01-14 19:36 ` Andrew Morton
2009-01-14 19:50 ` Peter Zijlstra
2009-01-14 20:21 ` Andrew Morton
2009-01-14 20:27 ` Ingo Molnar
2009-01-14 20:44 ` Andrew Morton
2009-01-14 20:14 ` Ingo Molnar
2009-01-14 20:30 ` Andrew Morton
2009-01-14 20:51 ` Ingo Molnar
2009-01-14 21:06 ` Andrew Morton
2009-01-14 21:14 ` Ingo Molnar
2009-01-14 21:35 ` Andrew Morton
2009-01-14 23:23 ` Ingo Molnar
2009-01-15 0:55 ` Nick Piggin
2009-01-14 21:41 ` Ingo Molnar
2009-01-14 21:50 ` Kay Sievers
2009-01-14 22:34 ` Ingo Molnar
2009-01-15 11:45 ` Folkert van Heusden
2009-01-15 12:53 ` Chris Samuel
2009-01-14 19:23 ` Peter Zijlstra
2009-01-14 19:33 ` Ingo Molnar
2009-01-15 8:41 ` [PATCH] mutex: set owner only once on acquisition Johannes Weiner
2009-01-15 8:56 ` Johannes Weiner
2009-01-13 18:12 ` [PATCH -v9][RFC] mutex: implement adaptive spinning Ingo Molnar
2009-01-13 18:21 ` Linus Torvalds
2009-01-13 18:24 ` Ingo Molnar
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