RE: Optimum HD space.

From: Larmour, Jonathan <>
Date: Thu, 30 Oct 1997 15:50:37 -0000

Hash: SHA1

Sorry to object. But if he's got a hard limit of 256Mb RAM, then you
can't just add as much cache as you like. Remember that squid needs
to be able to run in memory. A swapping squid will suffer performance
problems really badly.

Firstly, it matters whether you use VM or NOVM versions of squid.
Memory requirements of NOVM are, of course, less. If you use the VM
version, then you have to know what number of simultaneous users to

In both cases, you have to work out the memory requirements for the
internal cache structures. I've got a relatively small cache, so my
figures aren't representative, but you could look through the squid-
users list archive, or better still, if someone here could post the
disk usage of a squid that is close to 200Mb RAM usage, and whether
its VM or NOVM.

Oh, bugger, I've just seen Henny Bekker's reply. Oh well, I'll send
this anyway.

Jonathan L.
Origin, 323 Cambridge Science Park,Cambridge,UK. Tel:+44 (1223)
 ---[ It is impossible to enjoy idling thoroughly unless one has ]---
 ------------[ plenty of work to do - Jerome K. Jerome ]-------------
Fight spam! These opinions are all my fault

- ----------
From: Dancer
Sent: 30 October 1997 02:16
To: Michael Slater;
Subject: Re: Optimum HD space.

More is better. Absolutely. If you're using IDE drives, go for the
largest IDE drive you can jam in. (There appears to be an annoying
latency when switching between IDE drives that really slaughters
cache performance on busy servers). If you're using SCSI, you can
split the cache across a couple of drives without destroying response

The most space you can justify should be about right :)


Michael Slater wrote:

> Hello,
> I am in the process of building a new Squid proxy server, and
was hoping to get some idea of the optium amount of Hard drive space
for a Pentium Pro 200 with 256 megs of ram. Is their some sort of
formula for determining how much hard drive space would be best. Is
it simply a case of more is better, or should the total hard disk
space be determined by the available ram, or vise versa ? In any
case, i am limited with this particular mother board to 256megs of
> thank you,
> Michael Slater

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Received on Thu Oct 30 1997 - 08:02:51 MST

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