I used to run a filtering cache, using a shell script for the filter, and
a large list of urls, on a sparc 1+ w/24M, and 1 external 669M disk. It
served about 30 users, happily, albeit with a small cache size. (about
200M). We got a reasonable hit rate, though the machine was really for the
filtering part of the job. The machine never seemed to be at capacity, cpu
load was 25-30%, but for more users, I'd have liked to put a faster disk
on. That was with Sol 2.5.1, I believe 2.6 is faster.
--
ian
On Thu, 4 Feb 1999, David J Woolley wrote:
> Date: Thu, 4 Feb 1999 14:37:50 +0000
> From: David J Woolley <[EMAIL PROTECTED]>
> Reply-To: [EMAIL PROTECTED]
> To: [EMAIL PROTECTED]
> Subject: Re: Squid cache size
> Resent-Date: Thu, 4 Feb 1999 07:19:47 -0800 (PST)
> Resent-From: [EMAIL PROTECTED]
>
> > Anyone can recommend me proper sizes for cache disc and mem?
> > >From the docs I find out only that I need 5M of memory for each gigabyte
> > of cache.
> > The configuration is a PII/300MHz with 64M of RAM and 2 IDE HDD of about 4
> > GB each. I currently serve 10 PC but I'd like to know like how much space
> > is suitable for each additional PC.
>
> That question is essentially unanswerable as it depends on how your
> old and new users use the web. If they are all accessing the same
> pages, virtually no extra space is needed. If they are mainly
> accessing dynamic content, the cache may not be useful, etc.
>
> For reference, a 486 SX 33 here, with 200MB of cache disk and 32MB of
> memory seems to be able to support around 30 users in our company,
> with no signs of distress (20 - 25% CPU load) and a cache lifetime of
> about 10 days. It's currently using 18MB of memory, with a
> configured memory cache of 8MB and has 23,000 objects cached.
>
> If your users have the same profile as ours, I would suggest that you
> need to greatly reduce the specification of the machine!
>
> The only performance pluse we have is that the disks are SCSI,
> although you could probably get as good performance by making sure
> your two disks are on different interfaces (hda and hdc in Linux
> terms). Really, though, your number of users doesn't require great
> performance.
>
>
> --
> David Woolley - Office: David Woolley <[EMAIL PROTECTED]>
> BTS Home: <[EMAIL PROTECTED]>
> Wallington TQ 2887 6421
> England 51 21' 44" N, 00 09' 01" W (WGS 84)
>
>
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Oh, God is playing marbles,
With His Planets and his Stars, 35 Auld Burn Park,
Creating havoc through my life, St Andrews,
With his influence on Mars ... Fife,
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