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Date: Thu, 1 Jun 2000 02:48:31 -0500 (CDT)
From: "James A. Mutter" <jmutter@colltech.com>
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To: Len Conrad <lconrad@go2france.com>
Cc: freebsd-questions@FreeBSD.ORG
Subject: Re: Performance Tuning
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OK - I'll be a little more specific.  I'm going to build several (at least
10) of these machines in a load balanced environment.  The machines will
be running Sendmail 8.X and moving several million messages per day.  What
I was after was ideas for kernel, network, and disk performance
tuning.  We're probably only talking about 2 disks here, I assume Vinum
will be helpful.  Network is 100Mbit, Full Duplex, Switched.

On Wed, 31 May 2000, Len Conrad wrote:

> 
> >I'm going to be building a few (several) FreeBSD servers to use in a large
> >mail environment.  Anyone have any hints or suggestions on what measures I
> >might take to ensure peak performance from these boxes?  As far as
> >hardware is concerned we're probably looking at a PIII/500-700
> >(Whatever is current and available at the time) and a minimum 1G RAM,
> >probably 2 to 4.
> 
> See this commercial vendor's performance numbers, his expensive LSMTP 
> product, and his sizes of machines:
> 
> http://www.lsoft.com/products/default.asp?item=lsmtp
> 
> And then go do the same for free with FreeBSD and postfix and maybe 
> softupdates  filesystem.
> 
> Real speed comes from parallel machines and real reliablity comes from 
> redundant machines.  So build as many FreeBSD/postfix machines as you need.
> 
> I know one FreeBSD/postfix user in the financial sector that runs 20 
> FreeBSD/postfix machines to deliver a 100,000 msgs every morning to list 
> subscribers to stock market lists.
> 
> Len
> 
> 
> 
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