From: Patrick Caulfield <caulfield@sistina.com>
To: linux-lvm@sistina.com
Subject: Re: [linux-lvm] Paralell IO performance with LVM and XFS
Date: Thu Jan 17 11:21:01 2002 [thread overview]
Message-ID: <20020117172041.GI1066@tykepenguin.com> (raw)
In-Reply-To: <1011287191.26064.0.camel@UberGeek>
On Thu, Jan 17, 2002 at 11:06:31AM -0600, Austin Gonyou wrote:
> Hmm..it seems like writing with LVM striping isn't very good.
> 10MB/s or so. Is this IDE only, or SCSI too?
It's the random stuff that's suffering. Sequential Input seems to
scale as far as the fibre-channel interface would allow at about 5M/s, and the
writes start to flatten out after two stripes.
The interface was an emulex Fibre-channel but the disks are quote slow ones.
Effectively it's SCSI.
patrick
next prev parent reply other threads:[~2002-01-17 11:21 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2002-01-17 6:30 [linux-lvm] Paralell IO performance with LVM and XFS Miguel Angel de Vega
2002-01-17 6:57 ` Russell Coker
2002-01-17 9:22 ` Patrick Caulfield
2002-01-17 10:36 ` mitch
2002-01-17 10:44 ` Patrick Caulfield
2002-01-17 11:07 ` Austin Gonyou
2002-01-17 11:21 ` Patrick Caulfield [this message]
2002-01-17 11:40 ` Russell Coker
2002-01-17 11:59 ` Patrick Caulfield
2002-01-17 13:12 ` Austin Gonyou
2002-01-18 9:06 ` Patrick Caulfield
2002-01-17 21:13 ` Stephen Lord
2002-01-18 6:49 ` Heinz J . Mauelshagen
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