From: "Dr. David Alan Gilbert" <dave@treblig.org>
To: subbie subbie <subbie_subbie@yahoo.com>
Cc: linux-kernel@vger.kernel.org
Subject: Re: 3Ware 9500S-12 RAID controller -- poor performance
Date: Wed, 5 Oct 2005 12:25:58 +0100 [thread overview]
Message-ID: <20051005112558.GC18448@gallifrey> (raw)
In-Reply-To: <20051005064339.80683.qmail@web30303.mail.mud.yahoo.com>
> Something is very wrong with this card / driver /
> firmware and or kernel combination, hopefully someone
> can help out.
I think I have to agree; see my post from:
http://marc.theaimsgroup.com/?l=linux-kernel&m=112282837926689&w=2
I've got about 30MB/s from a single threaded version of my
backup code - which seems rather on the low side for
a modern RAID-5; with multiple writers I was seeing sub-5MB/s
but that might be fair if it is seeking everywhere.
I'd be interested to hear how your experiments with jbod'ing them
go.
Dave
--
-----Open up your eyes, open up your mind, open up your code -------
/ Dr. David Alan Gilbert | Running GNU/Linux on Alpha,68K| Happy \
\ gro.gilbert @ treblig.org | MIPS,x86,ARM,SPARC,PPC & HPPA | In Hex /
\ _________________________|_____ http://www.treblig.org |_______/
next prev parent reply other threads:[~2005-10-05 11:26 UTC|newest]
Thread overview: 18+ messages / expand[flat|nested] mbox.gz Atom feed top
2005-09-30 6:50 3Ware 9500S-12 RAID controller -- poor performance subbie subbie
2005-10-02 0:07 ` Ian Morgan
2005-10-05 6:43 ` subbie subbie
2005-10-05 11:25 ` Dr. David Alan Gilbert [this message]
2005-10-05 13:08 ` subbie subbie
2005-10-05 13:18 ` Dr. David Alan Gilbert
2005-10-05 13:39 ` subbie subbie
2005-10-05 13:40 ` Ian E. Morgan
2005-10-06 7:34 ` subbie subbie
2005-10-03 14:34 ` Ville Herva
2005-10-05 20:07 ` Miquel van Smoorenburg
-- strict thread matches above, loose matches on Subject: below --
2005-09-30 6:51 subbie subbie
2005-10-07 21:35 Jon Burgess
2005-10-10 10:42 ` subbie subbie
2005-10-10 10:54 ` Dr. David Alan Gilbert
2005-10-10 11:07 ` Mikael Abrahamsson
2005-10-10 11:22 ` subbie subbie
2005-10-10 12:36 ` Mikael Abrahamsson
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=20051005112558.GC18448@gallifrey \
--to=dave@treblig.org \
--cc=linux-kernel@vger.kernel.org \
--cc=subbie_subbie@yahoo.com \
/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.