From owner-freebsd-hackers Sat Dec 29 16:18:45 2001 Delivered-To: freebsd-hackers@freebsd.org Received: from h187n2fls4o804.telia.com (h187n2fls4o804.telia.com [213.65.247.187]) by hub.freebsd.org (Postfix) with SMTP id EDFBF37B423 for ; Sat, 29 Dec 2001 16:18:39 -0800 (PST) Received: (qmail 26233 invoked by uid 1003); 30 Dec 2001 00:18:21 -0000 Date: Sun, 30 Dec 2001 01:18:20 +0100 From: Tomas Svensson To: Josef Karthauser Cc: freebsd-hackers@FreeBSD.ORG Subject: Re: FreeBSD performing worse than Linux? Message-ID: <20011230011820.A26225@simba.systemteknik.net> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline User-Agent: Mutt/1.2.5i Sender: owner-freebsd-hackers@FreeBSD.ORG Precedence: bulk List-ID: List-Archive: (Web Archive) List-Help: (List Instructions) List-Subscribe: List-Unsubscribe: X-Loop: FreeBSD.ORG Saturday, December 29, 2001, 6:41:33 PM, you wrote: JK> On Fri, Dec 28, 2001 at 07:27:36PM +0100, Tomas Svensson wrote: >> ## several packets are lost here due to congestion, thanks to >> TCP_NODELAY: JK> No. These packets aren't lost to congestion. I can reproduce this JK> pattern every time. There's no random packet loseness about it. JK> You are right that switching TCP_NODELAY off does fix it, but it's not JK> caused by congestion I can assure you. I didn't know that this was on a LAN, then you have bigger problems than TCP_NODELAY. I never had problems using OpenSSH on a LAN, but on links with higher latency the burst of small packets does cause congestion and delays in the output (SSH Inc sshd 3.0 does not). -Tomas To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-hackers" in the body of the message