Date: Fri, 7 Dec 2001 13:53:11 -0500 (EST) From: Robert Watson <rwatson@FreeBSD.ORG> To: Garance A Drosihn <drosih@rpi.edu> Cc: arch@FreeBSD.ORG Subject: Re: Default value for maxusers Message-ID: <Pine.NEB.3.96L.1011207135049.42818N-100000@fledge.watson.org> In-Reply-To: <p05101004b836bc849f9a@[128.113.24.47]>
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On Fri, 7 Dec 2001, Garance A Drosihn wrote: > Isn't this a case where GENERIC has a value set for "older, smaller" > machines, so it can be used for booting up any machine? Most modern > machines may want 64 or more, but what happens for older machines if we > increase that value? Quite possibly. On the other hand, we've started to trim some older hardware support from GENERIC over time: in the last few months, we've dropped i386, and emulated math coprocessors. We've also gradually bumped up the memory requirements (I remember it going to 5, but it's probably to 8 now). I guess a useful question might be: what is the memory cost/footprint per "user" in maxusers. If we assume boxes today ship with a minimum of 64mb, and more likely 128mb, we can tune it appropriately. > Another thing I sometimes wonder is if that value (MAXUSERS) sets the > right values for whatever it is setting. I mean, I always increase > maxusers on my machines, but on the other hand most of my machines never > have more than three people connected to them at any one time. Why am I > setting "MAXUSERS" to 64 or 96 on a machine that only has 3 people > logged in? Dunno. It may be that "maxusers" is simply an out-dated term, and we should break it down into its components, seperately tweakable at boot-time using loader.conf. Many sites already seperately define NMBCLUSTERS to optimize network behavior independently from maxusers and the tables it implies. Robert N M Watson FreeBSD Core Team, TrustedBSD Project robert@fledge.watson.org NAI Labs, Safeport Network Services To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-arch" in the body of the message
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