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Date:      10 Jul 1998 15:13:13 +0200
From:      smoergrd@oslo.geco-prakla.slb.com (Dag-Erling Coidan Smørgrav)
To:        "Andrew N. Edmond (Nero)" <edmond@shaman.lycaeum.org>
Cc:        questions@FreeBSD.ORG, hackers@FreeBSD.ORG
Subject:   Re: optimizing with a heavy load...
Message-ID:  <rx4yau197di.fsf@oslo.geco-prakla.slb.com>
In-Reply-To: "Andrew N. Edmond's message of Fri, 10 Jul 1998 02:08:46 -0700 (PDT)
References:  <Pine.BSF.4.00.9807100200160.5997-100000@shaman.lycaeum.org>

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"Andrew N. Edmond (Nero)" <edmond@shaman.lycaeum.org> writes:
> FreeBSD 052098-SNAP, some of the kernel configuration:
> 
> maxusers        512
> options         NMBCLUSTERS=4096
> options         "CHILD_MAX=512"
> options         "OPEN_MAX=512"
> options         SYSVSHM
> options         SYSVSEM
> options         SYSVMSG

Your maxusers is so high that setting NMBCLUSTERS to 4096 actually
*reduces* the number of mbuf clusters instead of increasing it. Leave
that line out, or raise the value above 8704 (which is the default
computed value for maxusers=512)

> also, I do this is /etc/rc.local:
> 
> /sbin/sysctl -w kern.ipc.somaxconn=4096
> /sbin/sysctl -w kern.maxfiles=16384

The default value for maxfiles with maxusers=512 is 16424, which again
is higher (though not by much) than your arbitrarily tweaked value.

DES
-- 
Dag-Erling Smørgrav - smoergrd@oslo.geco-prakla.slb.com

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