linux-kernel.vger.kernel.org archive mirror
 help / color / mirror / Atom feed
From: Alan Cox <alan@lxorguk.ukuu.org.uk>
To: Stephan van Hienen <raid@a2000.nu>
Cc: "Peter L. Ashford" <ashford@sdsc.edu>,
	Jonathan Vardy <jonathan@explainerdc.com>,
	linux-raid@vger.kernel.org,
	Linux Kernel Mailing List <linux-kernel@vger.kernel.org>
Subject: Re: RAID 5 performance problems
Date: 03 Apr 2003 20:28:04 +0100	[thread overview]
Message-ID: <1049398084.11742.88.camel@dhcp22.swansea.linux.org.uk> (raw)
In-Reply-To: <Pine.LNX.4.53.0304032104070.3085@ddx.a2000.nu>

On Iau, 2003-04-03 at 20:20, Stephan van Hienen wrote:
> > 2.  I/O bandwidth (multiple PCI buses)
> sure this helps, but he is not even getting near the pci bus
> limitations...

With mirrored software raid you are writing twice the data over
the PCI bus.


  reply	other threads:[~2003-04-03 20:16 UTC|newest]

Thread overview: 28+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2003-04-03 15:45 RAID 5 performance problems Jonathan Vardy
2003-04-03 18:05 ` Peter L. Ashford
2003-04-03 18:47   ` Ross Vandegrift
2003-04-03 19:22     ` Stephan van Hienen
2003-04-03 19:20   ` Stephan van Hienen
2003-04-03 19:28     ` Alan Cox [this message]
2003-04-03 21:02     ` Ezra Nugroho
2003-04-03 21:25       ` Stephan van Hienen
2003-04-03 21:38     ` Peter L. Ashford
2003-04-03 22:09       ` Jonathan Vardy
2003-04-03 22:16         ` Jonathan Vardy
2003-04-03 22:28         ` Peter L. Ashford
2003-04-03 21:42   ` Jonathan Vardy
2003-04-03 22:13     ` Peter L. Ashford
2003-04-04 20:39   ` H. Peter Anvin
2003-04-03 21:06 ` Felipe Alfaro Solana
2003-04-03 21:14   ` Jonathan Vardy
2003-04-03 19:13 Neil Schemenauer
2003-04-03 19:49 Andy Arvai
2003-04-03 20:25 ` Mike Dresser
2003-04-03 21:10 ` Jonathan Vardy
2003-04-03 21:31   ` Ezra Nugroho
2003-04-03 20:10 Chuck Ebbert
2003-04-04 11:44 Jonathan Vardy
2003-04-04 14:39 ` Ezra Nugroho
2003-04-04 15:05 Jonathan Vardy
2003-04-04 16:01 Jonathan Vardy
2003-04-05  0:10 ` Jonathan Vardy

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=1049398084.11742.88.camel@dhcp22.swansea.linux.org.uk \
    --to=alan@lxorguk.ukuu.org.uk \
    --cc=ashford@sdsc.edu \
    --cc=jonathan@explainerdc.com \
    --cc=linux-kernel@vger.kernel.org \
    --cc=linux-raid@vger.kernel.org \
    --cc=raid@a2000.nu \
    /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 a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).