From: Brad Campbell <brad@wasp.net.au>
To: Gordon Henderson <gordon@drogon.net>
Cc: Robin Bowes <robin-lists@robinbowes.com>, linux-raid@vger.kernel.org
Subject: Re: Stress testing system?
Date: Mon, 11 Oct 2004 13:01:27 +0400 [thread overview]
Message-ID: <416A4BE7.4030005@wasp.net.au> (raw)
In-Reply-To: <Pine.LNX.4.56.0410110919530.9395@lion.drogon.net>
Gordon Henderson wrote:
> On Sun, 10 Oct 2004, Robin Bowes wrote:
>
>
>>This gave the following results:
>>
>>Version 1.03 ------Sequential Output------ --Sequential Input- --Random-
>> -Per Chr- --Block-- -Rewrite- -Per Chr- --Block-- --Seeks--
>>Machine Size K/sec %CP K/sec %CP K/sec %CP K/sec %CP K/sec %CP /sec %CP
>>dude.robinbow 3096M 13081 95 34159 75 12617 21 15311 92 40429 30 436.1 3
>>dude.robinbowes.com,3096M,13081,95,34159,75,12617,21,15311,92,40429,30,436.1,3,,,,,,,,,,,,,
>>
>>I don't actually know what the figures mean - is this fast??
>
>
> It's not brilliant, but reasonable for a RAID5 on IDE drives. Disk head
> bandwidth for comodity 7200 RPM drives is about 55MB/sec peak - although I
> haven't been able to get that with the SATA controllers I've used so-far,
> but I suspect thats because they are running in PATA mode.
>
Just a point of reference. This is on a single Athlon 2600+ with 10 7200 RPM Maxtor drives on 3
Promise SATA150TX4 controllers
Version 1.03 ------Sequential Output------ --Sequential Input- --Random-
-Per Chr- --Block-- -Rewrite- -Per Chr- --Block-- --Seeks--
Machine Size K/sec %CP K/sec %CP K/sec %CP K/sec %CP K/sec %CP /sec %CP
srv 1G 14502 45 23251 12 17102 9 23390 67 67688 24 638.4 1
srv,1G,14502,45,23251,12,17102,9,23390,67,67688,24,638.4,1,,,,,,,,,,,,,
Brad
prev parent reply other threads:[~2004-10-11 9:01 UTC|newest]
Thread overview: 15+ messages / expand[flat|nested] mbox.gz Atom feed top
2004-10-08 21:32 Stress testing system? Robin Bowes
2004-10-08 22:00 ` Mike Hardy
2004-10-08 22:07 ` Gordon Henderson
2004-10-08 23:49 ` Guy
2004-10-08 22:02 ` Gordon Henderson
2004-10-08 23:44 ` Robin Bowes
2004-10-08 23:48 ` Guy
2004-10-09 9:52 ` Robin Bowes
2004-10-09 16:58 ` Guy
2004-10-09 17:19 ` Robin Bowes
2004-10-10 20:36 ` Gordon Henderson
2004-10-10 21:35 ` Robin Bowes
2004-10-10 22:38 ` Guy
2004-10-11 8:38 ` Gordon Henderson
2004-10-11 9:01 ` Brad Campbell [this message]
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