From: Jens Axboe <axboe@suse.de>
To: Aaron Lehmann <aaronl@vitelus.com>
Cc: Andrew Morton <akpm@digeo.com>, Con Kolivas <conman@kolivas.net>,
linux kernel mailing list <linux-kernel@vger.kernel.org>
Subject: Re: [BENCHMARK] 2.5.47{-mm1} with contest
Date: Tue, 12 Nov 2002 15:23:54 +0100 [thread overview]
Message-ID: <20021112142354.GC832@suse.de> (raw)
In-Reply-To: <20021112142014.GC15812@vitelus.com>
On Tue, Nov 12 2002, Aaron Lehmann wrote:
> On Tue, Nov 12, 2002 at 03:04:23AM -0800, Andrew Morton wrote:
> > It will never be stunningly better than 2.4 for normal workloads on
> > normal machines, because 2.4 just ain't that bad.
>
> Actually, I am having serious problems with 2.4 (.20-pre5). Copying a
> file from hda to hdc without really doing anything else goes very
> slowly and lags the whole system ruthlessly. The load average rises to
> about three. Any app which tries to touch the disk will hang for
> several seconds. Yes, DMA is on on both drives (udma5), as well as
> 32-bit I/O and unmaskirq. Bad IDE controller or driver? I don't know.
> It's a ServerWorks CSB5. I've been meaning to try 2.5-mm to see if it
> improves this.
Testing 2.5 for this would be interesting too indeed, but you should
also try 2.4.20-rc1. Between -pre3 and -pre8 (iirc) you could have
awfully slow io. And you should probably do
# elvtune -r512 /dev/hd{a,c}
too, in 2.4.20-rc1
--
Jens Axboe
next prev parent reply other threads:[~2002-11-12 14:17 UTC|newest]
Thread overview: 25+ messages / expand[flat|nested] mbox.gz Atom feed top
2002-11-11 23:31 [BENCHMARK] 2.5.47{-mm1} with contest Con Kolivas
2002-11-12 0:09 ` Andrew Morton
2002-11-12 1:51 ` Con Kolivas
2002-11-12 2:07 ` mark walters
2002-11-12 2:18 ` Con Kolivas
2002-11-12 8:52 ` Giuliano Pochini
2002-11-12 9:20 ` Jens Axboe
2002-11-12 9:40 ` Con Kolivas
2002-11-12 3:04 ` Aaron Lehmann
2002-11-12 11:04 ` Andrew Morton
2002-11-12 14:20 ` Aaron Lehmann
2002-11-12 14:23 ` Jens Axboe [this message]
2002-11-12 20:37 ` Bill Davidsen
2002-11-12 20:59 ` Andrew Morton
2002-11-20 23:02 ` Andrew Morton
2002-11-21 0:08 ` William Lee Irwin III
2002-11-21 1:11 ` Alan Cox
2002-11-21 6:54 ` Andrew Morton
2002-11-21 13:20 ` Dave Jones
2002-11-21 17:21 ` Andrew Morton
2002-11-21 17:26 ` William Lee Irwin III
2002-11-21 18:18 ` Dave Jones
2002-11-21 18:25 ` Bill Davidsen
2002-11-21 14:00 ` Dave Jones
2002-11-21 19:59 ` Denis Vlasenko
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