From owner-freebsd-stable  Thu Apr 22 20:25: 6 1999
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From: Joao Carlos Mendes Luis <jonny@jonny.eng.br>
Message-Id: <199904230322.AAA04172@roma.coe.ufrj.br>
Subject: Re: nmbclusters=4096 doesn't increase mbufs
In-Reply-To: <199904222256.SAA12478@easeway.com> from "mwlucas@exceptionet.com" at "Apr 22, 1999  6:56:43 pm"
To: mwlucas@exceptionet.com
Date: Fri, 23 Apr 1999 00:22:29 -0300 (EST)
Cc: stable@FreeBSD.ORG
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#define quoting(mwlucas@exceptionet.com)
// We have a 2.2.8-stable box running IPFilter.  This box keeps runninng out
// of mbufs very quickly.
// 
// We have a kernel (full config below) that includes the following lines:
// 
// maxusers	256
// options         "NMBCLUSTERS=4096"
// 
// This should give us a whole heap of mbufs.
// 
// A netstat -m, however, shows us:
// 
// scooby# netstat -m
// 136 mbufs in use:
//         130 mbufs allocated to data
//         1 mbufs allocated to packet headers
//         4 mbufs allocated to protocol control blocks
//         1 mbufs allocated to socket names and addresses
// 128/132 mbuf clusters in use
// 281 Kbytes allocated to network (97% in use)
// 0 requests for memory denied
// 0 requests for memory delayed
// 0 calls to protocol drain routines

  Are you sure you did reboot with this kernel ?

  Even if options NMBCLUSTERS was wrong (and this is not the case),
the default for 256 users is 512 + MAXUSERS * 16 = 4608

					Jonny

--
João Carlos Mendes Luís			jonny@jonny.eng.br


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