Re: [squid-users] How big should be cache_dir ?

Hi,

Mark Elsen wrote:
>> Hello all,
>>
>> I am planning to use Squid as an HTTP accelerator to benefit from its
>> great caching capabilities. It will be setup on a Windows 2003 server.
>>
>> Ideally, I would like to use a huge amount of disk space for caching
>> (the reason is I need to cache a very large amount of data long to
>> create and that almost never change). Something in the hundreds of
>> Gigabytes.
>>
>> ....
>
> The cache size should be about the amount of traffic for a week generated
> by your users. Oversized cache dirs will impose vast memory
> requirements (see FAQ).

I understand that. But I realized that for 100 000 entries in the cache,
it takes around 15MB of memory, under quite a heavy load (around 40 HTTP
request per second), which I will never have in the real environment.

I didn't think 15MB of RAM is excessive... But once again, if I have 10
times the number of entries, will I need 10 times the RAM?

My ultimate goal would be to keep the documents forever, or almost. But
without going over a disk space limit, and getting rid of leat recently
used documents...

I could add a temporary store function to the script used to create the
documents, but since squid and its cache can do the same thing...

Thank's for you answer,

Martin Sévigny
Received on Thu Jan 12 2006 - 09:43:07 MST