From: Dexter Filmore <Dexter.Filmore@gmx.de>
To: Brendan Conoboy <blc@redhat.com>, linux-raid@vger.kernel.org
Subject: Re: 4 disks in raid 5: 33MB/s read performance?
Date: Tue, 23 May 2006 03:04:24 +0200 [thread overview]
Message-ID: <200605230304.24376.Dexter.Filmore@gmx.de> (raw)
In-Reply-To: <44721F84.6060503@redhat.com>
Am Montag, 22. Mai 2006 22:31 schrieb Brendan Conoboy:
> Dexter Filmore wrote:
> > I just dd'ed a 700MB iso to /dev/null, dd returned 33MB/s.
> > Isn't that a little slow?
> > System is a sil3114 4 port sata 1 controller with 4 samsung spinpoint
> > 250GB, 8MB cache in raid 5 on a Athlon XP 2000+/512MB.
>
> Which SATA driver is being used? The ata_piix driver, for instance, has
> some of the multi-disk performance penalties as any ATA controller would
> have.
>
> -Brendan (blc@redhat.com)
lsmod lists sata_sil.
--
-----BEGIN GEEK CODE BLOCK-----
Version: 3.12
GCS d--(+)@ s-:+ a- C+++(++++) UL+>++++ P+>++ L+++>++++ E-- W++ N o? K-
w--(---) !O M+ V- PS++(+) PE(-) Y++ PGP t++(---)@ 5 X+(++) R+(++) tv--(+)@
b++(+++) DI+++ D G++ e* h>++ r%>* y?
------END GEEK CODE BLOCK------
http://www.stop1984.com
http://www.againsttcpa.com
prev parent reply other threads:[~2006-05-23 1:04 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2006-05-22 15:46 4 disks in raid 5: 33MB/s read performance? Dexter Filmore
2006-05-22 16:33 ` Mark Hahn
2006-05-24 20:11 ` Bill Davidsen
2006-05-25 4:56 ` Neil Brown
2006-05-22 23:02 ` Neil Brown
2006-05-24 8:21 ` Max. md array size under 32-bit i368 Gordon Henderson
2006-05-24 16:55 ` Ming Zhang
2006-05-25 4:54 ` Neil Brown
2006-06-06 9:36 ` Quick Question Gordon Henderson
2006-05-25 13:58 ` 4 disks in raid 5: 33MB/s read performance? Dexter Filmore
[not found] ` <44721F84.6060503@redhat.com>
2006-05-23 1:04 ` Dexter Filmore [this message]
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=200605230304.24376.Dexter.Filmore@gmx.de \
--to=dexter.filmore@gmx.de \
--cc=blc@redhat.com \
--cc=linux-raid@vger.kernel.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.