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To: Brian Tao <taob@gate.sinica.edu.tw>
cc: FREEBSD-QUESTIONS-L <freebsd-questions@FreeBSD.org>
Subject: Re: Heavy HTTPD serving on 2.0-950412 
In-reply-to: Your message of "Fri, 05 May 95 17:21:45 +0800."
             <Pine.BSI.3.91.950505165249.8963U-100000@aries.ibms.sinica.edu.tw> 
From: David Greenman <davidg@Root.COM>
Reply-To: davidg@Root.COM
Date: Fri, 05 May 1995 11:40:17 -0700
Sender: questions-owner@FreeBSD.org
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>    One is the "mb_map_full" problem.  I *know* I've seen this
>question before, but I didn't save it, and now I need to know how to
>increase the number of buffers (if in fact that is the problem).  I

options         "NMBCLUSTERS=1024"

This will give you twice as many buffers (or 4 times if you don't have GATEWAY
in your kernel). Double the above to 2048 if the problem persists. I use 8192
on wcarchive, which is enough for 1000 ftp users (about 2000 TCP connections).

>    As my testing continued, I ran into another problem with the
>netstat display:
>
>Active Internet connections
>Proto Recv-Q Send-Q  Local Address          Foreign Address        (state)
>netstat: kvm_read: kvm_read: Bad address

   Rebuild netstat; the networking structurs in the kernel have changed.

-DG