From owner-freebsd-hackers Thu Aug 20 15:43:42 1998 Return-Path: Received: (from majordom@localhost) by hub.freebsd.org (8.8.8/8.8.8) id PAA12035 for freebsd-hackers-outgoing; Thu, 20 Aug 1998 15:43:42 -0700 (PDT) (envelope-from owner-freebsd-hackers@FreeBSD.ORG) Received: from smtp04.primenet.com (smtp04.primenet.com [206.165.6.134]) by hub.freebsd.org (8.8.8/8.8.8) with ESMTP id PAA12030 for ; Thu, 20 Aug 1998 15:43:40 -0700 (PDT) (envelope-from tlambert@usr04.primenet.com) Received: (from daemon@localhost) by smtp04.primenet.com (8.8.8/8.8.8) id OAA25666; Thu, 20 Aug 1998 14:42:48 -0700 (MST) Received: from usr04.primenet.com(206.165.6.204) via SMTP by smtp04.primenet.com, id smtpd025604; Thu Aug 20 14:42:44 1998 Received: (from tlambert@localhost) by usr04.primenet.com (8.8.5/8.8.5) id OAA26941; Thu, 20 Aug 1998 14:42:25 -0700 (MST) From: Terry Lambert Message-Id: <199808202142.OAA26941@usr04.primenet.com> Subject: Re: Linux vs FreeBSD (performances) To: dag-erli@ifi.uio.no (Dag-Erling Coidan =?iso-8859-1?Q?Sm=F8rgrav?=) Date: Thu, 20 Aug 1998 21:42:25 +0000 (GMT) Cc: didier@omnix.net, zenin@archive.rhps.org, hackers@FreeBSD.ORG, support@yard.de In-Reply-To: from "Dag-Erling Coidan =?iso-8859-1?Q?Sm=F8rgrav?=" at Aug 20, 98 04:18:21 pm X-Mailer: ELM [version 2.4 PL25] MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Sender: owner-freebsd-hackers@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.ORG > > when I'm running FreeBSD and Linux on the same machine (Pentium II) > > on this application, FreeBSD is 3.5 times faster than Linux > > This sounds a little extreme. Of course, we like to believe that > FreeBSD is faster than Linux, but a threefold increase in performance > is too good to be true. Blame it on differences in configuration. This is the "Yard" thing, where 100 byte packets fly in FreeBSD when TCP_NODELAY is set on the server. The thing that is killing Linux is their delayed ack implementation. Terry Lambert terry@lambert.org --- Any opinions in this posting are my own and not those of my present or previous employers. To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-hackers" in the body of the message