From owner-freebsd-net Fri Nov 30 10:13:11 2001 Delivered-To: freebsd-net@freebsd.org Received: from khavrinen.lcs.mit.edu (khavrinen.lcs.mit.edu [18.24.4.193]) by hub.freebsd.org (Postfix) with ESMTP id 2F58337B405; Fri, 30 Nov 2001 10:13:09 -0800 (PST) Received: (from wollman@localhost) by khavrinen.lcs.mit.edu (8.11.4/8.11.4) id fAUID8I28553; Fri, 30 Nov 2001 13:13:08 -0500 (EST) (envelope-from wollman) Date: Fri, 30 Nov 2001 13:13:08 -0500 (EST) From: Garrett Wollman Message-Id: <200111301813.fAUID8I28553@khavrinen.lcs.mit.edu> To: bmah@FreeBSD.ORG Cc: net@FreeBSD.ORG Subject: TCP anomalies (was Re: FreeBSD performing worse than Linux?) In-Reply-To: <200111300518.fAU5IXx11078@c527597-a.cstvl1.sfba.home.com> References: <20011128102241.6887B380A@overcee.netplex.com.au> <20011128112006.195983808@overcee.netplex.com.au> <20011129105321.C74413@monorchid.lemis.com> <200111290113.fAT1DnH04474@khavrinen.lcs.mit.edu> <200111300518.fAU5IXx11078@c527597-a.cstvl1.sfba.home.com> 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 < said: > Your 4.4-STABLE machine, is it from before or after rev 1.107.2.18 of > sys/netinet/tcp_input.c? Before. > Also...where did you do the trace (i.e. sender, receiver, or a third > machine)? Sender, of course -- that's the only place some of these phenomena could possibly be observed. I've now made available another trace, which involves the same machines but this time with newreno turned off on the sender. Note that the 40-packet bursts are still there, as are the problems with fast retransmit. -GAWollman To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-net" in the body of the message