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From: Adam Sampson <azz@gnu.org>
To: linux-kernel@vger.kernel.org
Subject: VM balancing problems under 2.4.2-ac1
Date: 23 Feb 2001 20:00:01 +0000	[thread overview]
Message-ID: <87vgq1p3um.fsf@cartman.azz.net> (raw)


Hiya.

The VM balancing updates in the recent ac kernels seem to have caused
some interesting performance problems on my desktop machine. I've got
160Mb of RAM, and 2.4.2-ac1 appears to be using excessively large
amounts of it for buffers and cache while pushing stuff out to
swap. This means that Mozilla, for instance, runs significantly worse
than under 2.4.0, since bits of it are being swapped in and out.

After the machine had been sitting for a while not doing very much:
   procs                      memory    swap          io     system
     cpu
 r  b  w   swpd   free   buff  cache  si  so    bi    bo   in   cs
us  sy  id
 1  0  0  97184   2116  12844 111768   5   6    15    11  154  791
29   4  67

After some heavy reiserfs disk IO (deleting lots of small files):
   procs                      memory    swap          io     system
     cpu
 r  b  w   swpd   free   buff  cache  si  so    bi    bo   in    cs
us  sy  id
 1  0  0 102620   1796  85836  43880 100   0    25     0  190   587
12   3  85

-- 

Adam Sampson
azz@gnu.org

             reply	other threads:[~2001-02-23 20:00 UTC|newest]

Thread overview: 8+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2001-02-23 20:00 Adam Sampson [this message]
2001-02-24  2:22 ` VM balancing problems under 2.4.2-ac1 Rik van Riel
2001-02-24 10:33   ` Joseph Bueno
2001-02-24 14:37     ` Rik van Riel
2001-02-26 16:33   ` Mike Galbraith
2001-03-03  0:03   ` Adrian Bunk
2001-03-04 17:26     ` Ingo Oeser
2001-03-05  7:05       ` Mike Galbraith

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