From: raid@ddx.a2000.nu
To: Adam Radford <aradford@3WARE.com>
Cc: linux-raid@vger.kernel.org
Subject: RE: 3ware 7500-12, bad write speed
Date: Sat, 12 Oct 2002 00:05:27 +0200 (CEST) [thread overview]
Message-ID: <Pine.LNX.4.44.0210120003450.29225-100000@ddx.a2000.nu> (raw)
In-Reply-To: <A1964EDB64C8094DA12D2271C04B812672C771@tabby>
On Thu, 10 Oct 2002, Adam Radford wrote:
> Can you run the following commands, then re-run your 3ware benchmark and see
> if the results change?
>
> echo "60" > /proc/sys/vm/bdflush
> echo "512" > /proc/sys/vm/max-readahead
> echo "256" > /proc/sys/vm/min-readahead
Do any of this settings (or any other settings in /proc/sys/vm) help sw
raid ?
also what are the best parameters for mke2fs (both sw and hw raid)
(i now run mke2fs -j -m 0 /dev/sdb1 (or /dev/md0)
next prev parent reply other threads:[~2002-10-11 22:05 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <A1964EDB64C8094DA12D2271C04B812672C771@tabby>
2002-10-11 22:03 ` 3ware 7500-12, bad write speed raid
2002-10-11 22:05 ` raid [this message]
2002-10-14 18:08 Adam Radford
-- strict thread matches above, loose matches on Subject: below --
2002-09-26 17:50 Adam Radford
2002-09-25 21:12 Adam Radford
2002-09-26 5:25 ` Mikael Abrahamsson
2002-09-26 6:04 ` dean gaudet
2002-09-25 20:43 Mikael Abrahamsson
2002-09-26 4:23 ` Maurice Hilarius
2002-09-26 6:43 ` Jason
2002-10-10 21:18 ` raid
2002-10-10 22:27 ` Mikael Abrahamsson
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