From owner-freebsd-stable Mon Oct 1 3:50:39 2001 Delivered-To: freebsd-stable@freebsd.org Received: from isntas01.curtin.edu.au (isntas01.curtin.edu.au [134.7.79.96]) by hub.freebsd.org (Postfix) with ESMTP id 3116337B401 for ; Mon, 1 Oct 2001 03:50:35 -0700 (PDT) Received: (from satherrl@localhost) by isntas01.curtin.edu.au (8.9.3/8.9.3) id TAA40276 for freebsd-stable@freebsd.org; Mon, 1 Oct 2001 19:11:02 +0800 (WST) (envelope-from satherrl) Date: Mon, 1 Oct 2001 19:11:02 +0800 (WST) From: satherrl Message-Id: <200110011111.TAA40276@isntas01.curtin.edu.au> To: freebsd-stable@freebsd.org Subject: Help - need bandwidth for short messages Sender: owner-freebsd-stable@FreeBSD.ORG Precedence: bulk List-ID: List-Archive: (Web Archive) List-Help: (List Instructions) List-Subscribe: List-Unsubscribe: X-Loop: FreeBSD.ORG Hello all, I have a cluster of Compaq PC's all running FreeBSD-stable and I am looking for tips on how to boost network performance. I've applied tuning(7) suggestions and done whatever I can with the kernel but testing with netpipe (from benchmarks) shows bad performance for messages below about 10K in length. Are there any suggestions? It's a problem because the cluster software exachanges many short control messages and uses TCP exclusively. I have results of netpipe in ftp://www.is.curtin.edu.au/pub/Bandwidth.gif if anyone is interested in having a look. The bandwidth is measured between two CompaQ EN's with Intel 100/10B NIC's (to replace built in NIC's) through a Netgear FS116 100Mbps switch. Regards Richard To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-stable" in the body of the message