From owner-freebsd-isp Mon Jan 28 23:32:30 2002 Delivered-To: freebsd-isp@freebsd.org Received: from workhorse.iMach.com (workhorse.iMach.com [206.127.77.89]) by hub.freebsd.org (Postfix) with ESMTP id 75A7737B402 for ; Mon, 28 Jan 2002 23:32:23 -0800 (PST) Received: from localhost (forrestc@localhost) by workhorse.iMach.com (8.9.3/8.9.3) with ESMTP id AAA16798; Tue, 29 Jan 2002 00:25:07 -0700 (MST) Date: Tue, 29 Jan 2002 00:25:07 -0700 (MST) From: "Forrest W. Christian" To: Dylan Carlson Cc: Troy Settle , freebsd-isp@FreeBSD.ORG Subject: Re: Tuning a system... In-Reply-To: Message-ID: MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: owner-freebsd-isp@FreeBSD.ORG Precedence: bulk List-ID: List-Archive: (Web Archive) List-Help: (List Instructions) List-Subscribe: List-Unsubscribe: X-Loop: FreeBSD.org On Mon, 28 Jan 2002, Dylan Carlson wrote: > I'm of the school of thought that says you're likely to spend a lot more time > making kernel adjustments, compiling and rebooting than you ever would trying > to reason with a dynamic kernel or deal with memory shortages, especially > with as cheap as RAM is now. I'll add my $0.02: About the only thing which I have run across which I regularly run into problems with are TCP/IP buffer parameters such as mbufs. If I tune my kernel so I can get insane flows across the internet (DS-3/OC-3 level links), I will quickly run out of buffers if I get more than a couple of flows going. I would *love* to see these dynamically sized - the buffer space, not necessarily the tcp/ip tuning parameters. I would also like a warning if they go above a certain level, and perhaps a configurable hard limit if necessary. - Forrest W. Christian (forrestc@imach.com) AC7DE ---------------------------------------------------------------------- The Innovation Machine Ltd. P.O. Box 5749 http://www.imach.com/ Helena, MT 59604 Home of PacketFlux Technogies and BackupDNS.com (406)-442-6648 ---------------------------------------------------------------------- Protect your personal freedoms - visit http://www.lp.org/ To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-isp" in the body of the message