From owner-freebsd-net Tue Jul 3 9:18:11 2001 Delivered-To: freebsd-net@freebsd.org Received: from InterJet.elischer.org (c421509-a.pinol1.sfba.home.com [24.7.86.9]) by hub.freebsd.org (Postfix) with ESMTP id F384837B407 for ; Tue, 3 Jul 2001 09:18:03 -0700 (PDT) (envelope-from julian@elischer.org) Received: from elischer.org (InterJet.elischer.org [192.168.1.1]) by InterJet.elischer.org (8.9.1a/8.9.1) with ESMTP id KAA18036; Tue, 3 Jul 2001 10:41:56 -0700 (PDT) Message-ID: <3B41EB3C.EF185F3F@elischer.org> Date: Tue, 03 Jul 2001 08:56:44 -0700 From: Julian Elischer X-Mailer: Mozilla 4.7 [en] (X11; U; FreeBSD 5.0-CURRENT i386) X-Accept-Language: en, hu MIME-Version: 1.0 To: Bryan Fullerton Cc: net@freebsd.org Subject: Re: PPPoE latency References: Content-Type: text/plain; charset=iso-8859-2 Content-Transfer-Encoding: 7bit Sender: owner-freebsd-net@FreeBSD.ORG Precedence: bulk List-ID: List-Archive: (Web Archive) List-Help: (List Instructions) List-Subscribe: List-Unsubscribe: X-Loop: FreeBSD.org Bryan Fullerton wrote: > > Howdy, > > I've been wondering why the latency is higher in FreeBSD's PPPoE > implementation. From what I've seen, ping times via my gateway box > are significantly higher than what friends are seeing with dedicated > router boxes (ie Linksys) on the same DSL provider. > > Here's what I'm seeing to the other end of my connection, no other > meaningful traffic going on: > > --- 65.92.109.1 ping statistics --- > 100 packets transmitted, 100 packets received, 0% packet loss > round-trip min/avg/max/stddev = 53.982/65.063/102.373/7.478 ms > > Here's a ping on my friend's machine (Mac ping, sorry for lack of precision): > > Packets out/in/bad/%loss = 64/64/0/0.0 > Round Trip Time (ms) min/avg/max = 14/24/59 > > My box should be fine cpu-wise, it's a Celeron/300, and isn't doing > anything else. The card PPPoE is running over is an ISA 10BaseT > D-Link card using the ed(4) driver, if that makes any difference. I > track STABLE with this box, it's currently at: > > FreeBSD katana.apt.samurai.com 4.3-STABLE FreeBSD 4.3-STABLE #13: Sun > Jun 24 01:43:39 EDT 2001 > > Any thoughts? I can live with this, the connection is rock solid and > has been for over a year now, just curious as to why. Apologies if > this has come up before, I searched the list archives and the bug > list. you may be a good test case for us.. we have heard of this negraph latency for a while but have never had a good test case.. if I send you test code can you run it for me? > > Thanks, > > Bryan > -- > Bryan Fullerton http://bryanfullerton.com/ > Core Competence uunet.ca!gts!cspace!bjf > Samurai Consulting > Can you feel the Ohmu call? > > To Unsubscribe: send mail to majordomo@FreeBSD.org > with "unsubscribe freebsd-net" in the body of the message -- +------------------------------------+ ______ _ __ | __--_|\ Julian Elischer | \ U \/ / hard at work in | / \ julian@elischer.org +------>x USA \ a very strange | ( OZ ) \___ ___ | country ! +- X_.---._/ presently in San Francisco \_/ \\ v To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-net" in the body of the message