From owner-freebsd-hackers Fri Jul 13 12: 6:44 2001 Delivered-To: freebsd-hackers@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 4AB2637B403 for ; Fri, 13 Jul 2001 12:06:40 -0700 (PDT) (envelope-from julian@elischer.org) Received: from InterJet.elischer.org (InterJet.elischer.org [192.168.1.1]) by InterJet.elischer.org (8.9.1a/8.9.1) with ESMTP id NAA70217; Fri, 13 Jul 2001 13:48:59 -0700 (PDT) Date: Fri, 13 Jul 2001 13:48:57 -0700 (PDT) From: Julian Elischer To: Leo Bicknell Cc: Matt Dillon , Drew Eckhardt , hackers@FreeBSD.ORG Subject: Re: Network performance tuning. In-Reply-To: <20010713145135.A26818@ussenterprise.ufp.org> Message-ID: MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII 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 terry is servicing 1,000,000 connections.. so I'm sure the savings are real to him... Julian On Fri, 13 Jul 2001, Leo Bicknell wrote: > On Fri, Jul 13, 2001 at 11:47:19AM -0700, Matt Dillon wrote: > > Well, you'd be surprised. 90% of the world still uses modems, so > > from the point of view of a web server it would be a big win. The > > Doesn't that sort of make my point though? With the current defaults of > 16k/socket there is no trouble filling modems, and no one seems worried > about the amount of memory that uses (basically all the installed machines > out there are running just fine). > > So, if we leave a hard minimum of 16k/socket, just chalk that up to waste, > and call it good enough we only have to handle the 10% of the world using > more. > > It would be nice to have the code to scale down 100 modem users to 8k, rather > than 16k, but that's still only 800k of memory recovery (for 100 simultaneous > connections), and we're talking about the ability to support streams that > need up to 1M per stream of buffer, so 800k seems "interesting" but not > "important". > > Better would probably be to lower the default to 8k, more than enough for > modem users, and let the scale up code hit the few 16k people. > > *shrug* > > -- > Leo Bicknell - bicknell@ufp.org > Systems Engineer - Internetworking Engineer - CCIE 3440 > Read TMBG List - tmbg-list-request@tmbg.org, www.tmbg.org > > To Unsubscribe: send mail to majordomo@FreeBSD.org > with "unsubscribe freebsd-hackers" in the body of the message > To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-hackers" in the body of the message