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From: Ingo Molnar <mingo@elte.hu>
To: Christoph Hellwig <hch@infradead.org>,
	Peter Zijlstra <a.p.zijlstra@chello.nl>,
	linux-kernel@vger.kernel.org, linux-mm@kvack.org,
	Linus Torvalds <torvalds@osdl.org>, Andrew Morton <akpm@osdl.org>
Subject: Re: [PATCH] mm: remove global locks from mm/highmem.c
Date: Sun, 28 Jan 2007 19:19:09 +0100	[thread overview]
Message-ID: <20070128181909.GA12645@elte.hu> (raw)
In-Reply-To: <20070128155429.GA26855@infradead.org>


* Christoph Hellwig <hch@infradead.org> wrote:

> On Sun, Jan 28, 2007 at 04:48:06PM +0100, Ingo Molnar wrote:
> > i'm sorry, but do you realize that files_lock is a global lock, 
> > triggered by /every single/ file close?
> 
> Please check which thread you're in before you start such lengthy 
> rants.

my reply applies to the other thread too, you made a similar comment 
there too:

* Christoph Hellwig <hch@infradead.org> wrote:

> On Sun, Jan 28, 2007 at 12:51:18PM +0100, Peter Zijlstra wrote:
> > This patch-set breaks up the global file_list_lock which was found 
> > to be a severe contention point under basically any filesystem 
> > intensive workload.
>
> Benchmarks, please.  Where exactly do you see contention for this?

	Ingo

  reply	other threads:[~2007-01-28 18:21 UTC|newest]

Thread overview: 26+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2007-01-28 14:11 Peter Zijlstra
2007-01-28 14:49 ` Christoph Hellwig
2007-01-28 15:17   ` Ingo Molnar
2007-01-28 15:28     ` Christoph Hellwig
2007-01-28 15:48       ` Ingo Molnar
2007-01-28 15:54         ` Christoph Hellwig
2007-01-28 18:19           ` Ingo Molnar [this message]
2007-01-28 22:29 ` Andrew Morton
2007-01-29  2:52   ` Nick Piggin
2007-01-29  9:44   ` Peter Zijlstra
2007-01-30  1:31     ` Martin J. Bligh
2007-01-30  1:41       ` Andrew Morton
2007-01-30  1:49         ` Martin J. Bligh
2007-01-30  2:15           ` Andrew Morton
2007-01-31  0:44             ` David Chinner
2007-01-31  1:11               ` Andrew Morton
2007-01-31  3:22                 ` David Chinner
2007-02-02 12:05                   ` Christoph Hellwig
2007-02-02 19:24                     ` Matt Mackall
2007-02-02 23:16                       ` David Chinner
2007-02-02 23:14                     ` David Chinner
2007-01-29 19:08   ` Ingo Molnar
2007-01-29 19:19     ` Hugh Dickins
2007-01-29 19:53       ` Ingo Molnar
2007-01-29 20:06     ` Ingo Molnar
2007-01-30  2:02     ` Nick Piggin

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