From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail15-dub-R.bigfish.com (mail-dub.bigfish.com [213.199.154.10]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (Client CN "*.bigfish.com", Issuer "*.bigfish.com" (not verified)) by ozlabs.org (Postfix) with ESMTP id 91E41DDF0A for ; Fri, 9 Nov 2007 03:30:12 +1100 (EST) MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----_=_NextPart_001_01C82224.9936303F" Subject: RE: ML405 gigabit ethernet with kernel 2.6.23 Date: Thu, 8 Nov 2007 09:29:52 -0700 In-Reply-To: References: <4732719A.20707@triumf.ca> From: "Rick Moleres" To: "MingLiu" , "kentaro" , Message-Id: <20071108162959.3AA52DD8066@mail15-dub.bigfish.com> List-Id: Linux on Embedded PowerPC Developers Mail List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , This is a multi-part message in MIME format. ------_=_NextPart_001_01C82224.9936303F Content-Type: text/plain; charset="ISO-2022-JP" Content-Transfer-Encoding: 7bit Hi, Yes, for 1500 MTU these aren’t too bad. One thing to note, using the TCP_STREAM option does not take advantage of zero-copy and possibly checksum offload on the transmit side. You should use the TCP_SENDFILE option for that. We typically use options such as: netperf -c -C -H 192.168.1.1 -t TCP_STREAM -- -s131072 -S131072 -m65536 netperf -c -C -H 192.168.1.1 -t UDP_STREAM -- -s131072 -S131072 -m8192 (if using jumbo frames of 8982) -Rick ________________________________ From: linuxppc-embedded-bounces+moleres=xilinx.com@ozlabs.org [mailto:linuxppc-embedded-bounces+moleres=xilinx.com@ozlabs.org] On Behalf Of MingLiu Sent: Thursday, November 08, 2007 2:32 AM To: kentaro; linuxppc-embedded@ozlabs.org Subject: RE: ML405 gigabit ethernet with kernel 2.6.23 Dear Kentaro, > ------------------------------------------------------------- > "netperf -H 192.168.1.1 -t TCP_STREAM" 110 Mbps > "netperf -H 192.168.1.1 -t UDP_STREAM" 210 Mbps > ------------------------------------------------------------- Are these results the ones with or without Jumbo-frame enabled? If no, they are quite good I think. The results from Montavista probably are the ones with Jumbo-frame enabled. For anybody who has interest on this topic, I have recently an accepted paper which has part of the content on this. The link is http://web.it.kth.se/‾mingliu/publications/co_design(icfpt07).pdf and in 6.2 section, I listed our measurement results. 300Mbps for TCP and 400Mbps for UDP, with Jumbo-frame enabled. Unfortunately I did not explain the details and detailed configurations on our case. So these results are only for your reference. BR Ming ________________________________ 用 Windows Live Spaces 展示个性自我，与好友分享生活！ 了解更多信息！ ------_=_NextPart_001_01C82224.9936303F Content-Type: text/html; charset="ISO-2022-JP" Content-Transfer-Encoding: 7bit

Hi,

 

Yes, for 1500 MTU these aren’t too bad.  One thing to note, using the TCP_STREAM option does not take advantage of zero-copy and possibly checksum offload on the transmit side.  You should use the TCP_SENDFILE option for that.  We typically use options such as:

 

            netperf –c –C –H 192.168.1.1 –t TCP_STREAM -- -s131072 –S131072 –m65536

            netperf –c –C –H 192.168.1.1 –t UDP_STREAM -- -s131072 –S131072 –m8192 (if using jumbo frames of 8982)

 

-Rick

From: linuxppc-embedded-bounces+moleres=xilinx.com@ozlabs.org [mailto:linuxppc-embedded-bounces+moleres=xilinx.com@ozlabs.org] On Behalf Of MingLiu
Sent: Thursday, November 08, 2007 2:32 AM
To: kentaro; linuxppc-embedded@ozlabs.org
Subject: RE: ML405 gigabit ethernet with kernel 2.6.23

 

Dear Kentaro,

> -------------------------------------------------------------
> "netperf -H 192.168.1.1 -t TCP_STREAM" 110 Mbps
> "netperf -H 192.168.1.1 -t UDP_STREAM" 210 Mbps
> -------------------------------------------------------------

Are these results the ones with or without Jumbo-frame enabled? If no, they are quite good I think. The results from Montavista probably are the ones with Jumbo-frame enabled.
 
For anybody who has interest on this topic, I have recently an accepted paper which has part of the content on this. The link is http://web.it.kth.se/‾mingliu/publications/co_design(icfpt07).pdf and in 6.2 section, I listed our measurement results. 300Mbps for TCP and 400Mbps for UDP, with Jumbo-frame enabled. Unfortunately I did not explain the details and detailed configurations on our case. So these results are only for your reference.
 
BR
Ming

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