From owner-freebsd-questions Thu Mar 7 16:56:52 1996 Return-Path: owner-questions Received: (from root@localhost) by freefall.freebsd.org (8.7.3/8.7.3) id QAA21442 for questions-outgoing; Thu, 7 Mar 1996 16:56:52 -0800 (PST) Received: from main.gbdata.com (tty17.com1.houston.net [198.65.148.50]) by freefall.freebsd.org (8.7.3/8.7.3) with SMTP id QAA21437 for ; Thu, 7 Mar 1996 16:56:43 -0800 (PST) Received: (from gclarkii@localhost) by main.gbdata.com (8.6.12/8.6.9) id SAA01539; Thu, 7 Mar 1996 18:56:20 -0600 From: Gary Clark II Message-Id: <199603080056.SAA01539@main.gbdata.com> Subject: Re: Can someone tell me what this kernel message means? To: wollman@lcs.mit.edu (Garrett A. Wollman) Date: Thu, 7 Mar 1996 18:56:19 -0600 (CST) Cc: craigs@venus.os.com, questions@FreeBSD.ORG In-Reply-To: <9603071836.AA06351@halloran-eldar.lcs.mit.edu> from "Garrett A. Wollman" at Mar 7, 96 01:36:09 pm X-Mailer: ELM [version 2.4 PL24] Content-Type: text Sender: owner-questions@FreeBSD.ORG Precedence: bulk Garrett A. Wollman wrote: > > < said: > > > Greetings, > > I'm getting this message with increasing frequency. Can anyone tell me > > what it means/ > > > /kernel: in_rtgtimo: adjusted rtq_reallyold to xxx > > > The 'xxx' is a number usually between 200 to 2000. > > > It is a number that starts at .75*(3600 s) and goes down by 25% every > ten minutes until there are either less than 128 unreferenced entries > in the per-host cache, or the value gets down to 10 s. You need to > think about how many different systems regularly start TCP connections > to your machine and what sort of performance-memory tradeoff you want > to make, and adjust these MIB variables accordingly: > > net.inet.ip.rtexpire: 3600 > net.inet.ip.rtminexpire: 10 > net.inet.ip.rtmaxcache: 128 > > -GAWollman > Garrett, Could you put forth a small explanation on which to adjust these values for loads? e.g. for high loads should I bump up or lower rtexpire? Gary -- Gary Clark II gclarkii@main.gbdata.com (Home) gclarkii@nwpros.com (Work) gclarkii@FreeBSD.ORg (Play)