OpenEuphoria

RE: [OT] Linux caches

• Posted by Patrick.Barnes at transgrid.com.au Jan 14, 2003
• 413 views

That helps a lot, thank you.

>cache_dir ufs /var/cache/squid 100 16 256

I'm not sure what the significance of having subdirectories and subdirectories 
under that accomplishes... What is the purpose of having them?

Also, which file in /proc would be the best one to look at for filesize 
information, or what command will give the total size of a directory and 
all it's contents? 

>Nice, but long, Sig. Also, why doesnt everyone repesct the 80-col width
>standard?
>*sigh*

My email wordwraps, so I don't notice.

======================
 ____<---------\__
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\_| Patrick Barnes

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-----Original Message-----
From: jbrown1050 at hotpop.com [mailto:jbrown1050 at hotpop.com]
Sent: Tuesday, 14 January 2003 10:29
To: EUforum
Subject: Re: [OT] Linux caches



On Tue, Jan 14, 2003 at 09:44:53AM +1100, Patrick.Barnes at transgrid.com.au
wrote:
> 
> My precious linux server box stopped working!... namely the telnet server, the
> samba server, and the squid server. There may have been more, but not something
> that I used...
> 
> When I found that my hard drive capacity was 4.3G and my used space was 4.3G
> (by cat'ing something in the /proc folder) I got a little suspicious. This
> machine is a fileserver and an internet gateway, and it has a 1G internet cache
> set. Methinks the cache should be smaller for such a small hard drive.
> 
> How do I change the internet cache size (in squid I think) down to something a
> little more maneageable, and what is the location of the cache folder, so I can
> clear it out?
> 
> Sorry to bother you Euphorians.
> 

Hmm ...

/etc/squid/squid.conf

Thats where you can change your settings. (At least its where mine are.)

The option to control that would be cache_dir.

cache_dir ufs /var/cache/squid 100 16 256

Taking that example line,

ufs - Its the type of cache access used.
ufs is the orignal Squid one, aufs is a version which uses POSIX threads
to avoid blocking the main squid process, and diskd is another variant on that
which uses a separate process altogether to do the cache access.

/var/cache/squid - The directory to use as the cache. This is the place
which holds the stuff you may want to delete.

100 - in megabytes (MB), the amount of space to use for the cache. You'll
prob want to change this in your own squid file as well.

16 - number of top-level subdirs to have in the cache dir.

256 - number of second-level subdirs to have in the cache dir.

If you use diskd, 2 more options apply:

cache_dir diskd /var/cache/squid 100 16 256 64 72

64 - number of unacknowledged I/O requests when Squid stops opening new files.

72 - number of unacknowledged messages when Squid starts blocking.

Does the Above help at all Pat?

jbrown

> 
> ==============================================
>  _______<-------------------\__
> /  _____<--------------------__|===
> | |_    <-------------------/
> \__| Patrick Barnes
> 
> 

Nice, but long, Sig. Also, why doesnt everyone repesct the 80-col width
standard?
*sigh*

> 
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