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From: David Rees <dbr@greenhydrant.com>
To: linux-kernel@vger.kernel.org
Cc: Andreas Dilger <adilger@turbolabs.com>,
	Bruce Guenter <bruceg@em.ca>,
	Rik van Riel <riel@conectiva.com.br>
Subject: Re: Where's all my memory going?
Date: Thu, 10 Jan 2002 08:17:01 -0800	[thread overview]
Message-ID: <20020110081701.A1205@greenhydrant.com> (raw)
In-Reply-To: <E16OMpF-0001pj-00@the-village.bc.nu> <Pine.LNX.4.33L.0201092034590.2985-100000@imladris.surriel.com> <20020110024520.A29045@em.ca> <20020110030537.C771@lynx.adilger.int> <20020110145542.B2499@mould.bodgit-n-scarper.com>
In-Reply-To: <20020110145542.B2499@mould.bodgit-n-scarper.com>; from matt@bodgit-n-scarper.com on Thu, Jan 10, 2002 at 02:55:42PM +0000

On Thu, Jan 10, 2002 at 02:55:42PM +0000, Matt Dainty wrote:
>
> Patch applied cleanly, and I redid the 'test'. I've attached the output
> of free and /proc/slabinfo, *.1 is without patch, *.2 is with. In both
> cases postal was left to run for about 35 minutes by which time it had
> delivered around ~54000 messages locally.
> 
> Overall, with the patch, the large numbers in /proc/slabinfo are *still*
> large, but not as large as without the patch. Overall memory usage still
> seems similar.

So the performance of the test was the same with or without the patch?

Does top or vmstat indicate any kind of difference on the system when the
benchmark is pushing 1500 msgs/s vs 150 msgs/s?

There's a kernel profiling tool somewhere that might also help if there's a
large amount of system time being used up.  (I think this is it:
http://oss.sgi.com/projects/kernprof/)

-Dave

  reply	other threads:[~2002-01-10 16:17 UTC|newest]

Thread overview: 14+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2002-01-09 17:36 Where's all my memory going? Matt Dainty
2002-01-09 17:47 ` Alan Cox
2002-01-09 22:36   ` Rik van Riel
2002-01-10  8:45     ` Bruce Guenter
2002-01-10 10:05       ` Andreas Dilger
2002-01-10 11:28         ` Matt Dainty
2002-01-10 14:55         ` Matt Dainty
2002-01-10 16:17           ` David Rees [this message]
2002-01-10 20:46           ` Andreas Dilger
2002-01-10 22:24             ` Bruce Guenter
2002-01-10 22:36               ` Andreas Dilger
2002-01-14 11:40                 ` Matt Dainty
2002-01-10 22:18         ` Bruce Guenter
  -- strict thread matches above, loose matches on Subject: below --
2002-01-11 15:30 Rolf Lear

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