From owner-freebsd-hackers  Tue Mar 20 10:24:32 2001
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Date: Tue, 20 Mar 2001 10:21:56 -0800
From: Ted Faber <faber@ISI.EDU>
To: "Michael C . Wu" <keichii@peorth.iteration.net>
Cc: fs@FreeBSD.ORG, hackers@FreeBSD.ORG
Subject: Re: tuning a VERY heavily (30.0) loaded server
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References: <20010320111144.A51924@peorth.iteration.net> <20010320092717.R29888@fw.wintelcom.net> <20010320113818.B52586@peorth.iteration.net> <20010320094837.B1284@ted.isi.edu> <20010320120314.D52586@peorth.iteration.net>
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On Tue, Mar 20, 2001 at 12:03:14PM -0600, Michael C . Wu wrote:
> On Tue, Mar 20, 2001 at 09:48:37AM -0800, Ted Faber scribbled:
> | Forgive me if this is a stupid question, but how much swap is there on
> | this machine?  Is the combination of the packed MFS and high process
> | load exhausting your swap?
> 
> 
> SWAP is never touched. :)
> 
> last pid: 23395;  load averages:  2.08,  2.92,  3.60    up 0+01:29:58  02:03:27
> 1529 processes:24 running, 1505 sleeping
> CPU states: 40.5% user,  0.0% nice, 46.4% system,  1.1% interrupt, 12.0% idle
> Mem: 705M Active, 1369M Inact, 332M Wired, 99M Cache, 265M Buf, 7504K Free
> Swap: 512M Total, 512M Free

A couple other people have mentioned that this is your swap load when
the machine's quiet.  MFS can exhaust your swap quickly, and if you
scale these load numbers up by a factor of 10, I think you're going to
touch swap.  (Even here you're already down to 7M free mem.)

I wouldn't be surprised if you're running out of swap.
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