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From: Andrew Morton <akpm@digeo.com>
To: andersen@codepoet.org
Cc: Con Kolivas <conman@kolivas.net>, Ingo Molnar <mingo@elte.hu>,
	linux-kernel@vger.kernel.org
Subject: Re: [BENCHMARK] Corrected gcc3.2 v gcc2.95.3 contest results
Date: Mon, 23 Sep 2002 11:24:01 -0700	[thread overview]
Message-ID: <3D8F5C41.35EBE979@digeo.com> (raw)
In-Reply-To: 20020923124730.GA7556@codepoet.org

Erik Andersen wrote:
> 
> On Mon Sep 23, 2002 at 08:30:21PM +1000, Con Kolivas wrote:
> > Yes you make a very valid point and something I've been stewing over privately
> > for some time. contest runs benchmarks in a fixed order with a "priming" compile
> > to try and get pagecaches etc back to some sort of baseline (I've been trying
> > hard to make the results accurate and repeatable).
> 
> It would sure be nice for this sortof test if there were
> some sort of a "flush-all-caches" syscall...
> 

Yes, it would be nice.

Unmounting and remounting the test filesystem is usually
sufficient.  Or you can run

main()
{
	memset(malloc(1024*1024*1024), 0, 1024*1024*1024);
}

a couple of times.

  parent reply	other threads:[~2002-09-23 18:31 UTC|newest]

Thread overview: 31+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2002-09-23  6:55 [BENCHMARK] Corrected gcc3.2 v gcc2.95.3 contest results Con Kolivas
2002-09-23  7:49 ` Ingo Molnar
2002-09-23 10:30   ` Con Kolivas
2002-09-23 11:03     ` jw schultz
2002-09-23 12:47     ` Erik Andersen
2002-09-23 13:00       ` Con Kolivas
2002-09-23 13:15       ` Richard B. Johnson
2002-09-23 13:35         ` Ingo Molnar
2002-09-23 14:09           ` Richard B. Johnson
2002-09-23 18:24       ` Andrew Morton [this message]
2002-09-23 14:02     ` Ryan Anderson
2002-09-23 14:15       ` Richard B. Johnson
2002-09-23 14:24         ` Con Kolivas
2002-09-23 14:34           ` Jakub Jelinek
2002-09-23 16:03             ` Måns Rullgård
2002-09-23 14:43           ` Richard B. Johnson
2002-09-24 21:30             ` Bill Davidsen
2002-09-23 16:34           ` Oliver Xymoron
2002-09-23 21:47             ` Con Kolivas
2002-09-24  1:12               ` jw schultz
2002-09-24  9:18                 ` Jan Hudec
2002-09-23 14:26     ` Ingo Molnar
2002-09-23 14:36       ` Con Kolivas
2002-09-24 21:27   ` Bill Davidsen
     [not found] <Pine.LNX.4.33.0209232236070.27095-100000@coffee.psychology.mcmaster.ca>
2002-09-24  2:45 ` Con Kolivas
2002-09-24  3:01   ` Andrew Morton
2002-09-24  9:34     ` Jan Hudec
2002-09-24 13:45     ` Denis Vlasenko
2002-09-24  9:26       ` Con Kolivas
2002-09-24 14:19         ` Denis Vlasenko
2002-09-24 15:47       ` Mark Hahn

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