Date: Thu, 8 Mar 2001 21:37:22 +0100 From: Jesper Skriver <jesper@skriver.dk> To: Matt Dillon <dillon@earth.backplane.com> Cc: Dan Phoenix <dphoenix@bravenet.com>, freebsd-hackers@FreeBSD.ORG Subject: Re: systat -vmstat or iostat IO help Message-ID: <20010308213722.A83857@skriver.dk> In-Reply-To: <200103060208.f2628PT49635@earth.backplane.com>; from dillon@earth.backplane.com on Mon, Mar 05, 2001 at 06:08:25PM -0800 References: <Pine.BSO.4.21.0103051732370.6833-100000@gandalf.bravenet.com> <200103060208.f2628PT49635@earth.backplane.com>
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On Mon, Mar 05, 2001 at 06:08:25PM -0800, Matt Dillon wrote: > > :I am trying to figure out corelation between Inactive and Free then. > :Inact would be unused ram right? > :Free would be what how much of Active is being used? So what you are > :saying is if there is to much free then alot of active pages are being > :killed for some reason...as seen in error logs etc? ....just trying to get > :a quick overview of what a good accessment that was...never thought of > :that. > > 'free' (from systat -vm or top) is all that matters in your case. > Active/Inactive/Cache are best simply added together. Their > individual values will depend heavily on the load on the machine > because the VM system doesn't bother to keep things in their > proper queues if the memory load is low. Could you please give a pointer to a description of the meaning of Active, Inactive and Cache, on a machine I see this Mem: 138M Active, 661M Inact, 114M Wired, 48M Cache, 112M Buf, 44M Free Swap: 1612M Total, 16K Used, 1612M Free Yes I know it has too much memory, but I'm surprised why more isn't used for disk caching .... /Jesper -- Jesper Skriver, jesper(at)skriver(dot)dk - CCIE #5456 Work: Network manager @ AS3292 (Tele Danmark DataNetworks) Private: FreeBSD committer @ AS2109 (A much smaller network ;-) One Unix to rule them all, One Resolver to find them, One IP to bring them all and in the zone to bind them. To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-hackers" in the body of the message
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