Date: Thu, 7 Mar 1996 18:56:19 -0600 (CST) From: Gary Clark II <gclarkii@main.gbdata.com> To: wollman@lcs.mit.edu (Garrett A. Wollman) Cc: craigs@venus.os.com, questions@FreeBSD.ORG Subject: Re: Can someone tell me what this kernel message means? Message-ID: <199603080056.SAA01539@main.gbdata.com> In-Reply-To: <9603071836.AA06351@halloran-eldar.lcs.mit.edu> from "Garrett A. Wollman" at Mar 7, 96 01:36:09 pm
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Garrett A. Wollman wrote: > > <<On Thu, 7 Mar 1996 10:13:23 -0500 (EST), Craig Shrimpton <craigs@venus.os.com> 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)
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