From: Davide Rossetti <davide.rossetti@roma1.infn.it>
To: Brian McGrew <Brian@doubledimension.com>
Cc: linux-kernel@vger.kernel.org
Subject: Re: PCI Burst and Overall System Speed (XEON)
Date: Thu, 07 Oct 2004 19:52:07 +0200 [thread overview]
Message-ID: <41658247.9060308@roma1.infn.it> (raw)
In-Reply-To: <E6456D527ABC5B4DBD1119A9FB461E350193E2@constellation.doubledimension.com>
Brian McGrew wrote:
>I have a question about the PCI Bursting and overall processing speed on a dual Xeon box; but first I have to give a slight bit of background, (all of it relevant to the question) I'll try and keep it short.
>
>
>
what do you mean by "PCI Bursting" ?? are you using DMA (PCI card Mem
Write Multiple) or MMIO read (CPU Mem Read Line) ?
anyway on my system, 2 CPU Xeon 2.6GHz GC-LE + a custom PCI-X 100MHz
card, I get
- 440.755 MByte/s, only 1 process
- 424.683 MByte/s, the process below running:
sh -c 'while true ; do echo miao ; done' > /dev/null
it's:
Linux xeino 2.4.22-1.2199.nptlsmp #1 SMP Wed Aug 4 11:48:29 EDT 2004
i686 i686 i386 GNU/Linux
what is your kernel version?
regards
prev parent reply other threads:[~2004-10-07 18:01 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2004-10-07 14:12 Brian McGrew
2004-10-07 14:29 ` Arjan van de Ven
2004-10-07 17:52 ` Davide Rossetti [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=41658247.9060308@roma1.infn.it \
--to=davide.rossetti@roma1.infn.it \
--cc=Brian@doubledimension.com \
--cc=linux-kernel@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 a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox
all inboxes | Powered by JetHome®