From owner-freebsd-chat Wed Jun 13 14:31:46 2001 Delivered-To: freebsd-chat@freebsd.org Received: from mailsrv.otenet.gr (mailsrv.otenet.gr [195.170.0.5]) by hub.freebsd.org (Postfix) with ESMTP id D1A2637B40C for ; Wed, 13 Jun 2001 14:31:28 -0700 (PDT) (envelope-from keramida@ceid.upatras.gr) Received: from hades.hell.gr (patr530-b109.otenet.gr [195.167.121.237]) by mailsrv.otenet.gr (8.11.1/8.11.1) with ESMTP id f5DLVQM25480; Thu, 14 Jun 2001 00:31:26 +0300 (EEST) Received: (from charon@localhost) by hades.hell.gr (8.11.3/8.11.3) id f5DKQQQ70895; Wed, 13 Jun 2001 23:26:26 +0300 (EEST) (envelope-from keramida@ceid.upatras.gr) Date: Wed, 13 Jun 2001 23:26:26 +0300 From: Giorgos Keramidas To: Jonathan Fortin Cc: freebsd-chat@FreeBSD.ORG Subject: Re: Sysadmin Article --Which OS is Fastest for High-Performance Network Applications? Message-ID: <20010613232626.H69527@hades.hell.gr> References: <00e901c0f43a$9aced2a0$13a86395@alink> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline User-Agent: Mutt/1.2.5i In-Reply-To: <00e901c0f43a$9aced2a0$13a86395@alink>; from jfortin@akalink.com on Wed, Jun 13, 2001 at 02:56:49PM -0400 X-PGP-Fingerprint: 3A 75 52 EB F1 58 56 0D - C5 B8 21 B6 1B 5E 4A C2 X-URL: http://students.ceid.upatras.gr/~keramida/index.html Sender: owner-freebsd-chat@FreeBSD.ORG Precedence: bulk List-ID: List-Archive: (Web Archive) List-Help: (List Instructions) List-Subscribe: List-Unsubscribe: X-Loop: FreeBSD.org On Wed, Jun 13, 2001 at 02:56:49PM -0400, Jonathan Fortin wrote: > "6x faster than FreeBSD", rigghtt, was SoftUPDATES, > DMA enabled, vfs.vmiodirenable=1 enabled? Well, speed is sometimes nice. And Linux with its asynchronous ext2 filesystem, and it's caching and all, might prove to be faster than FreeBSD's default installation. The problems with this kind of statements (Linux is faster in its default installation than BSD) are far too many to list in a mail message, but I can always try: o Speed is not the most important factor in all cases. Reliability of having synchronous writes in the filesystem might be more important in other cases. o I am not sure if you do have an option in linux to mount filesystems with synchronous writes. If there isn't such an option, then trd ying to prove that just because "we dont have this feature", means "this is evil and does not scale well" is plainly childish. At least with FreeBSD I can choose if the filesystem is going to be mounted synchronously, if soft-updates will be enabled, etc. etc. o "Where are the raw numbers?" This is usually a killer question, for such statements. No, no, no, simply stating "I've done my tests and have reached the conclusion that BSD is 4 times slower" means absolutely NOTHING to me. I am a man of numbers. Hit me with a huge pile o' them. Only then I might consider such statemets a bit more seriously. There you go. What was it he was talking about? Speed? :-) Does it matter anymore? -giorgos To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-chat" in the body of the message