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From: Ingo Molnar <mingo@elte.hu>
To: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Anton Starikov <ant.starikov@gmail.com>, Greg KH <greg@kroah.com>,
	stable@kernel.org, Andrew Morton <akpm@linux-foundation.org>,
	linux-mm@kvack.org,
	Linux Kernel Mailing List <linux-kernel@vger.kernel.org>,
	bugzilla-daemon@bugzilla.kernel.org,
	bugme-daemon@bugzilla.kernel.org,
	Peter Zijlstra <a.p.zijlstra@chello.nl>
Subject: Re: [Bugme-new] [Bug 15618] New: 2.6.18->2.6.32->2.6.33 huge regression in performance
Date: Wed, 24 Mar 2010 00:36:40 +0100	[thread overview]
Message-ID: <20100323233640.GA16798@elte.hu> (raw)
In-Reply-To: <alpine.LFD.2.00.1003231602130.18017@i5.linux-foundation.org>


* Linus Torvalds <torvalds@linux-foundation.org> wrote:

> 
> 
> On Tue, 23 Mar 2010, Anton Starikov wrote:
> >
> > I think we got a winner!
> > 
> > Problem seems to be fixed.
> > 
> > Just for record, I used next patches:
> > 
> > 59c33fa7791e9948ba467c2b83e307a0d087ab49
> > 5d0b7235d83eefdafda300656e97d368afcafc9a
> > 1838ef1d782f7527e6defe87e180598622d2d071
> > 4126faf0ab7417fbc6eb99fb0fd407e01e9e9dfe
> > bafaecd11df15ad5b1e598adc7736afcd38ee13d
> > 0d1622d7f526311d87d7da2ee7dd14b73e45d3fc
> 
> Ok. If you have performance numbers for before/after these patches for 
> your actual workload, I'd suggest posting them to stable@kernel.org, and 
> maybe those rwsem fixes will get back-ported.
> 
> The patches are pretty small, and should be fairly safe. So they are 
> certainly stable material.

We havent had any stability problems with them, except one trivial build bug, 
so -stable would be nice.

	Ingo

WARNING: multiple messages have this Message-ID (diff)
From: Ingo Molnar <mingo@elte.hu>
To: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Anton Starikov <ant.starikov@gmail.com>, Greg KH <greg@kroah.com>,
	stable@kernel.org, Andrew Morton <akpm@linux-foundation.org>,
	linux-mm@kvack.org,
	Linux Kernel Mailing List <linux-kernel@vger.kernel.org>,
	bugzilla-daemon@bugzilla.kernel.org,
	bugme-daemon@bugzilla.kernel.org,
	Peter Zijlstra <a.p.zijlstra@chello.nl>
Subject: Re: [Bugme-new] [Bug 15618] New: 2.6.18->2.6.32->2.6.33 huge regression in performance
Date: Wed, 24 Mar 2010 00:36:40 +0100	[thread overview]
Message-ID: <20100323233640.GA16798@elte.hu> (raw)
In-Reply-To: <alpine.LFD.2.00.1003231602130.18017@i5.linux-foundation.org>


* Linus Torvalds <torvalds@linux-foundation.org> wrote:

> 
> 
> On Tue, 23 Mar 2010, Anton Starikov wrote:
> >
> > I think we got a winner!
> > 
> > Problem seems to be fixed.
> > 
> > Just for record, I used next patches:
> > 
> > 59c33fa7791e9948ba467c2b83e307a0d087ab49
> > 5d0b7235d83eefdafda300656e97d368afcafc9a
> > 1838ef1d782f7527e6defe87e180598622d2d071
> > 4126faf0ab7417fbc6eb99fb0fd407e01e9e9dfe
> > bafaecd11df15ad5b1e598adc7736afcd38ee13d
> > 0d1622d7f526311d87d7da2ee7dd14b73e45d3fc
> 
> Ok. If you have performance numbers for before/after these patches for 
> your actual workload, I'd suggest posting them to stable@kernel.org, and 
> maybe those rwsem fixes will get back-ported.
> 
> The patches are pretty small, and should be fairly safe. So they are 
> certainly stable material.

We havent had any stability problems with them, except one trivial build bug, 
so -stable would be nice.

	Ingo

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  parent reply	other threads:[~2010-03-23 23:37 UTC|newest]

Thread overview: 66+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
     [not found] <bug-15618-10286@https.bugzilla.kernel.org/>
2010-03-23 14:22 ` [Bugme-new] [Bug 15618] New: 2.6.18->2.6.32->2.6.33 huge regression in performance Andrew Morton
2010-03-23 14:22   ` Andrew Morton
2010-03-23 17:34   ` Ingo Molnar
2010-03-23 17:34     ` Ingo Molnar
2010-03-23 17:45     ` Linus Torvalds
2010-03-23 17:45       ` Linus Torvalds
2010-03-23 17:57       ` Anton Starikov
2010-03-23 17:57         ` Anton Starikov
2010-03-23 18:00       ` Ingo Molnar
2010-03-23 18:00         ` Ingo Molnar
2010-03-23 18:03         ` Anton Starikov
2010-03-23 18:03           ` Anton Starikov
2010-03-23 18:21           ` Andrew Morton
2010-03-23 18:21             ` Andrew Morton
2010-03-23 18:25             ` Anton Starikov
2010-03-23 18:25               ` Anton Starikov
2010-03-23 19:22               ` Robin Holt
2010-03-23 19:22                 ` Robin Holt
2010-03-23 19:30                 ` Anton Starikov
2010-03-23 19:30                   ` Anton Starikov
2010-03-23 19:49                   ` Robin Holt
2010-03-23 19:49                     ` Robin Holt
2010-03-23 19:57                     ` Robin Holt
2010-03-23 19:57                       ` Robin Holt
2010-03-23 19:50                 ` Anton Starikov
2010-03-23 19:50                   ` Anton Starikov
2010-03-23 19:52             ` Linus Torvalds
2010-03-23 19:52               ` Linus Torvalds
2010-03-24 16:40           ` Roland Dreier
2010-03-24 16:40             ` Roland Dreier
2010-03-26  3:24             ` Anton Starikov
2010-03-26  3:24               ` Anton Starikov
2010-03-23 19:14       ` Anton Starikov
2010-03-23 19:14         ` Anton Starikov
2010-03-23 19:17         ` Peter Zijlstra
2010-03-23 19:17           ` Peter Zijlstra
2010-03-23 19:42           ` Anton Starikov
2010-03-23 19:54         ` Linus Torvalds
2010-03-23 19:54           ` Linus Torvalds
2010-03-23 20:43           ` Anton Starikov
2010-03-23 20:43             ` Anton Starikov
2010-03-23 23:04             ` Linus Torvalds
2010-03-23 23:04               ` Linus Torvalds
2010-03-23 23:19               ` Anton Starikov
2010-03-23 23:19                 ` Anton Starikov
2010-03-23 23:36               ` Ingo Molnar [this message]
2010-03-23 23:36                 ` Ingo Molnar
2010-03-23 23:55                 ` Linus Torvalds
2010-03-23 23:55                   ` Linus Torvalds
2010-03-24  0:03                   ` Anton Starikov
2010-03-24  0:03                     ` Anton Starikov
2010-03-24  2:15                   ` Andi Kleen
2010-03-24  2:15                     ` Andi Kleen
2010-03-24  3:00                     ` Linus Torvalds
2010-03-24  3:00                       ` Linus Torvalds
2010-04-19 18:19                       ` Greg KH
2010-04-19 18:19                         ` Greg KH
2010-03-23 18:13     ` Andrew Morton
2010-03-23 18:13       ` Andrew Morton
2010-03-23 18:19       ` Anton Starikov
2010-03-23 18:19         ` Anton Starikov
2010-03-23 18:27       ` Ingo Molnar
2010-03-23 18:27         ` Ingo Molnar
2010-03-23 21:19       ` Anton Starikov
2010-03-23 21:19         ` Anton Starikov
2010-04-02 18:57   ` Lee Schermerhorn

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