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From: Marcelo Tosatti <marcelo.tosatti@cyclades.com>
To: Badari Pulavarty <pbadari@us.ibm.com>
Cc: linux-mm <linux-mm@kvack.org>, lkml <linux-kernel@vger.kernel.org>
Subject: Re: Better pagecache statistics ?
Date: Thu, 1 Dec 2005 14:00:44 -0200	[thread overview]
Message-ID: <20051201160044.GB14499@dmt.cnet> (raw)
In-Reply-To: <20051201152029.GA14499@dmt.cnet>

On Thu, Dec 01, 2005 at 01:20:29PM -0200, Marcelo Tosatti wrote:
> 
> Hi Badari,
> 
> On Wed, Nov 30, 2005 at 10:57:09AM -0800, Badari Pulavarty wrote:
> > Hi,
> > 
> > Is there a effort/patches underway to provide better pagecache
> > statistics ? 
> > 
> > Basically, I am interested in finding detailed break out of
> > cached pages. ("Cached" in /proc/meminfo) 
> > 
> > Out of this "cached pages"
> > 
> > - How much is just file system cache (regular file data) ?
> > - How much is shared memory pages ?
> 
> You could do that from userspace probably, by doing some math 
> on all processes statistics versus global stats, but does not 
> seem very practical.

Actually, SysRQ-M reports "N pages shared".

WARNING: multiple messages have this Message-ID (diff)
From: Marcelo Tosatti <marcelo.tosatti@cyclades.com>
To: Badari Pulavarty <pbadari@us.ibm.com>
Cc: linux-mm <linux-mm@kvack.org>, lkml <linux-kernel@vger.kernel.org>
Subject: Re: Better pagecache statistics ?
Date: Thu, 1 Dec 2005 14:00:44 -0200	[thread overview]
Message-ID: <20051201160044.GB14499@dmt.cnet> (raw)
In-Reply-To: <20051201152029.GA14499@dmt.cnet>

On Thu, Dec 01, 2005 at 01:20:29PM -0200, Marcelo Tosatti wrote:
> 
> Hi Badari,
> 
> On Wed, Nov 30, 2005 at 10:57:09AM -0800, Badari Pulavarty wrote:
> > Hi,
> > 
> > Is there a effort/patches underway to provide better pagecache
> > statistics ? 
> > 
> > Basically, I am interested in finding detailed break out of
> > cached pages. ("Cached" in /proc/meminfo) 
> > 
> > Out of this "cached pages"
> > 
> > - How much is just file system cache (regular file data) ?
> > - How much is shared memory pages ?
> 
> You could do that from userspace probably, by doing some math 
> on all processes statistics versus global stats, but does not 
> seem very practical.

Actually, SysRQ-M reports "N pages shared".

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  parent reply	other threads:[~2005-12-01 16:00 UTC|newest]

Thread overview: 51+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2005-11-30 18:57 Better pagecache statistics ? Badari Pulavarty
2005-11-30 18:57 ` Badari Pulavarty
2005-12-01  2:35 ` Hareesh Nagarajan
2005-12-01  2:35   ` Hareesh Nagarajan
2005-12-01 15:20 ` Marcelo Tosatti
2005-12-01 15:20   ` Marcelo Tosatti
2005-12-01 15:59   ` Badari Pulavarty
2005-12-01 15:59     ` Badari Pulavarty
2005-12-01 16:10     ` Arjan van de Ven
2005-12-01 16:10       ` Arjan van de Ven
2005-12-01 16:23       ` Badari Pulavarty
2005-12-01 16:23         ` Badari Pulavarty
2005-12-01 17:08       ` Marcelo Tosatti
2005-12-01 17:08         ` Marcelo Tosatti
2005-12-01 17:15         ` Badari Pulavarty
2005-12-01 17:15           ` Badari Pulavarty
2005-12-01 17:21           ` Arjan van de Ven
2005-12-01 17:21             ` Arjan van de Ven
2005-12-01 17:57             ` Marcelo Tosatti
2005-12-01 17:57               ` Marcelo Tosatti
2005-12-01 18:20               ` Badari Pulavarty
2005-12-01 18:20                 ` Badari Pulavarty
2005-12-02 22:15                 ` Frank Ch. Eigler
2005-12-02 22:15                   ` Frank Ch. Eigler
2005-12-02 22:31                   ` Badari Pulavarty
2005-12-02 22:31                     ` Badari Pulavarty
2005-12-02 22:46                     ` Frank Ch. Eigler
2005-12-02 22:46                       ` Frank Ch. Eigler
2005-12-02 23:46                       ` Badari Pulavarty
2005-12-01 18:24               ` Badari Pulavarty
2005-12-01 18:24                 ` Badari Pulavarty
2005-12-04 18:48           ` Martin J. Bligh
2005-12-04 18:48             ` Martin J. Bligh
2005-12-01 17:19     ` Marcelo Tosatti
2005-12-01 17:19       ` Marcelo Tosatti
2005-12-01 17:31       ` Badari Pulavarty
2005-12-01 17:31         ` Badari Pulavarty
2005-12-01 18:15         ` Marcelo Tosatti
2005-12-01 18:15           ` Marcelo Tosatti
2005-12-01 18:25           ` Badari Pulavarty
2005-12-01 18:25             ` Badari Pulavarty
2005-12-01 16:00   ` Marcelo Tosatti [this message]
2005-12-01 16:00     ` Marcelo Tosatti
2005-12-01 21:16     ` Christoph Lameter
2005-12-01 21:16       ` Christoph Lameter
2005-12-02  0:13       ` Badari Pulavarty
2005-12-02  0:13         ` Badari Pulavarty
2005-12-28  1:33   ` Marcelo Tosatti
2005-12-28  1:33     ` Marcelo Tosatti
2005-12-28 19:36     ` Tom Zanussi
2005-12-28 19:36       ` Tom Zanussi

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