From owner-freebsd-hackers  Sat Jan  4 11:54:41 1997
Return-Path: <owner-hackers>
Received: (from root@localhost)
          by freefall.freebsd.org (8.8.4/8.8.4) id LAA11884
          for hackers-outgoing; Sat, 4 Jan 1997 11:54:41 -0800 (PST)
Received: from crh.cl.msu.edu (crh.cl.msu.edu [35.8.1.24])
          by freefall.freebsd.org (8.8.4/8.8.4) with ESMTP id LAA11875
          for <freebsd-hackers@FreeBSD.ORG>; Sat, 4 Jan 1997 11:54:39 -0800 (PST)
Received: (from henrich@localhost)
          by crh.cl.msu.edu (8.8.4/8.8.4)
	  id OAA05981; Sat, 4 Jan 1997 14:54:17 -0500 (EST)
From: Charles Henrich <henrich@crh.cl.msu.edu>
Message-Id: <199701041954.OAA05981@crh.cl.msu.edu>
Subject: Re: MMAP Troubles (Joerg?)
To: msmith@atrad.adelaide.edu.au (Michael Smith)
Date: Sat, 4 Jan 1997 14:54:17 -0500 (EST)
Cc: joerg_wunsch@uriah.heep.sax.de, freebsd-hackers@FreeBSD.ORG
In-Reply-To: <199701041258.XAA23533@genesis.atrad.adelaide.edu.au> from Michael Smith at "Jan 4, 97 11:28:35 pm"
X-Mailer: ELM [version 2.4ME+ PL22 (25)]
MIME-Version: 1.0
Content-Type: text/plain; charset=US-ASCII
Content-Transfer-Encoding: 7bit
Sender: owner-hackers@FreeBSD.ORG
X-Loop: FreeBSD.org
Precedence: bulk

> Slightly older news (but I suspect still current) was that INN is
> faster on FreeBSD _without_ mmap, due to caching etc.  Remember that

I dont see how that is, since the READ/WRITE's just turn into MMAP's inside the
kernel (from what I understand of it).

> you will want to mount your spool disks async and noatime too.  Search

Yeee, Im not that adventurous yet :)  I hope I have sufficent spindles and I/O
bandwidth where that wont be neccessary

-Crh

       Charles Henrich     Michigan State University     henrich@msu.edu

                         http://pilot.msu.edu/~henrich