From owner-freebsd-chat Mon Jun 28 19:41:29 1999 Delivered-To: freebsd-chat@freebsd.org Received: from shell.webmaster.com (mail.webmaster.com [209.133.28.73]) by hub.freebsd.org (Postfix) with ESMTP id 368E914FBE for ; Mon, 28 Jun 1999 19:41:23 -0700 (PDT) (envelope-from davids@webmaster.com) Received: from whenever ([209.133.29.2]) by shell.webmaster.com (Post.Office MTA v3.5.3 release 223 ID# 0-12345L500S10000V35) with SMTP id com; Mon, 28 Jun 1999 19:41:18 -0700 From: "David Schwartz" To: , "Kris Kirby" Cc: Subject: RE: 100 Mbps Ethernet? (fxp, xl performance) Date: Mon, 28 Jun 1999 19:41:18 -0700 Message-ID: <000101bec1d8$dd6c6dc0$021d85d1@youwant.to> MIME-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 7bit X-Priority: 3 (Normal) X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook 8.5, Build 4.71.2377.0 In-Reply-To: <199906290228.TAA10672@implode.root.com> Importance: Normal X-MimeOLE: Produced By Microsoft MimeOLE V5.00.2314.1300 Sender: owner-freebsd-chat@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.org Small writes can hurt too. As can just generally bad design (like waiting for one type of I/O before doing another). How are you measuring these numbers? With ftp/ftpd? DS > >I've got a crossover cable running between a P5/166 (fxp0) and a > >K6/2-350 (xl0). It's negotiated at 100Mbps. I'm seeing ~3.5 MB/s from > >the P5 to the K6-2, and 5.7[12] MB/s in the reverse direction. Is this > >about right? The network is taking almost 50% of the CPU of the P5. > > For 50% CPU, yes, that's about right. You can do about 11MB/sec on a > typical P5 system (100% CPU). It looks like the K6 is throttling the > speed potential or the test you're doing is slowing it down (perhaps > involving file I/O?). > > -DG To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-chat" in the body of the message