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Date: Tue, 24 Sep 2002 18:08:59 -0700 (PDT)
From: Dave Hansen <dave@us.ibm.com>
To: Andrew Morton <akpm@digeo.com>
cc: William Lee Irwin III <wli@holomorphy.com>, <linux-kernel@vger.kernel.org>
Subject: Re: 2.5.38-mm2 dbench $N times
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On Tue, 24 Sep 2002, Andrew Morton wrote:

> William Lee Irwin III wrote:
> > 
> > William Lee Irwin III wrote:
> > >> Taken on 32x/32G NUMA-Q:
> > >> Throughput 67.3949 MB/sec (NB=84.2436 MB/sec  673.949 MBit/sec)  16 procs
> > >> dbench 16  11.72s user 122.21s system 422% cpu 31.733 total
>
> dbench 16 on that sort of machine is a memory bandwidth test.
> And a dcache lock exerciser.  It basically doesn't touch the
> disk.  Something very bad is happening.
> 
> Anton can get 3000 MByte/sec ;)

Bill's Machine cost around $50, plus the cost to repair the walls that I 
crushed when hauling the pieces around.  Anton's cost $2 million.  Bill 
wins :)

Are you trying to bind the processes anywhere?  I wonder what would happen 
if you make it always run quad 0...
-- 
Dave Hansen
haveblue@us.ibm.com