From: David Acker <dacker@roinet.com>
To: Johannes Stezenbach <js@sig21.net>
Cc: linux-embedded@vger.kernel.org, netdev@vger.kernel.org
Subject: Re: 100Mbit ethernet performance on embedded devices
Date: Wed, 02 Sep 2009 15:35:08 -0400 [thread overview]
Message-ID: <4A9EC8EC.4030006@roinet.com> (raw)
In-Reply-To: <20090819145057.GA25400@sig21.net>
Johannes Stezenbach wrote:
> What I'm interested in are some numbers for similar hardware,
> to find out if my hardware and/or ethernet driver can be improved,
> or if the CPU will always be the limiting factor.
> I'd also be interested to know if hardware checksumming
> support would improve throughput noticably in such a system,
> or if it is only useful for 1Gbit and above.
>
> Did anyone actually manage to get close to 100Mbit/sec
> with similar CPU resources?
I have a pico station, http://ubnt.com/products/picostation.php with
Atheros MIPS 4KC @ 180MHz. Iperf on this device gives 46.0 Mbits/sec
sending TCP from a PC to the device and 36.2 Mbits/sec sending TCP from
the device to a PC. The NIC is part of the Atheros chipset so PCI is
not involved.
-ack
prev parent reply other threads:[~2009-09-02 19:35 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-08-19 14:50 100Mbit ethernet performance on embedded devices Johannes Stezenbach
2009-08-19 15:05 ` Ben Hutchings
2009-08-19 15:35 ` Jamie Lokier
2009-08-20 12:56 ` Johannes Stezenbach
2009-08-28 14:41 ` Johannes Stezenbach
2009-08-28 17:35 ` Mark Brown
2009-08-29 7:05 ` Simon Holm Thøgersen
2009-08-27 15:38 ` H M Thalib
2009-08-28 14:26 ` Johannes Stezenbach
2009-09-02 5:09 ` Aras Vaichas
2009-09-02 19:35 ` David Acker [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=4A9EC8EC.4030006@roinet.com \
--to=dacker@roinet.com \
--cc=js@sig21.net \
--cc=linux-embedded@vger.kernel.org \
--cc=netdev@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;
as well as URLs for NNTP newsgroup(s).