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Date:      Thu, 28 Oct 1999 01:15:06 -0400 (EDT)
From:      Mike Nowlin <mike@argos.org>
To:        Mike Smith <mike@smith.net.au>
Cc:        freebsd-hardware@FreeBSD.ORG
Subject:   Re: FreeBSD Server Hardware Configuration Question. 
Message-ID:  <Pine.LNX.4.05.9910280106460.31559-100000@jason.argos.org>
In-Reply-To: <199910270604.XAA00634@dingo.cdrom.com>

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> > I guess what I really need is a good idea of what is necessary to make 
> > these machines powerful and responsive.  I think the best solution for the 
> > web server would be a powerful P3 Xeon server, using a hardware RAID system 
> > with at least 1GB of RAM.
> 
> This would be outrageous overkill.  A mid-sized P-II system with a

Agreed....  I have a P-II/400 with 256 megs of RAM handling more
traffic than this, and it's doing both the HTTP and DB aspects of it.  You
aren't used to using NT, are you? :)  

> >  The database server, on the other hand, I'm a 
> > little more unsure about.  I haven't had enough experience with MySQL to 
> > know what keeps to running fast and smooth.   I figure that it probably 
> > relies heavily on drive speed and RAM, but how important are issues like 
> > having a large L2 cache on the processor?
> 
> For this application; more or less irrelevant.

A boatload of memory usually helps...  It's amazing the performance
increase you get by going from 64 to 96 megs even on a light-to-medium
load DB server.  I've played around with tweaking both Postgres and MySQL
on -stable in different configurations, and (especially on Postgres)
adding memory always made a significant improvement -- doing large table
sorts and SELECT..WHERE commands can take up large chunks of RAM for very
short periods of time -- without it, "may the swapping commence."  Unless
you're dealing with a 486/25, your best bet is to concentrate on the I/O
bandwidth of the drives, and memory.  Even a Pentium/200 can be a
wonderful DB server if you set it up right.

mike



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