From: Clint Byrum <cbyrum@spamaps.org>
To: LVM general discussion and development <linux-lvm@redhat.com>
Subject: Re: [linux-lvm] LVM2 seems to chop performance by 33%
Date: Thu, 10 Jun 2004 09:30:29 -0700 [thread overview]
Message-ID: <1086885029.13087.15.camel@localhost> (raw)
In-Reply-To: <40C87F8A.7080304@dgreaves.com>
On Thu, 2004-06-10 at 08:34, David Greaves wrote:
> Thanks
>
> I'd tried that, but no real change. I started 1t 128k and also tried
> 64k, 256k :) (oh, and 1k)
>
I did some tests a few months ago with bonnie++.. might offer some
encouragement (please don't post this to slashdot.. ;)
http://spamaps.org/raidtests.php
There's a lot of data there, but if you look at the LVM stuff, you might
notice that the concurrent performance (having 3 processes hammering the
disks in different places instead of just one) was quite good when
compared to flat out RAID5. I'll pay 5% performance for manageability
any day. :-D
next prev parent reply other threads:[~2004-06-10 16:30 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2004-06-10 14:25 [linux-lvm] LVM2 seems to chop performance by 33% David Greaves
2004-06-10 15:05 ` Stuart Harper
2004-06-10 15:31 ` Chris Croswhite
2004-06-10 15:34 ` David Greaves
2004-06-10 16:30 ` Clint Byrum [this message]
2004-06-20 18:17 ` David Greaves
2004-06-20 19:53 ` Alasdair G Kergon
2004-06-21 9:55 ` David Greaves
2004-06-14 11:50 ` Miguel Cabeça
2004-06-14 13:24 ` David Greaves
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