[squid-users] Squid slows down when a file with more than 250 00 URLs to block is loaded

Thanks Chris! This helped me a lot!

Regards

Pablo Romero

RE: [squid-users] Squid slows down when a file with more than 250 00 URLs to
block is loaded

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From: Chris Robertson <crobertson@dont-contact.us>
Date: Fri, 28 Jan 2005 14:34:49 -0900

>-----Original Message-----
>From: Pablo Romero [mailto:psromerozu@hotmail.com]
>Sent: Friday, January 28, 2005 2:20 PM
>To: squid-users@squid-cache.org
>Subject: [squid-users] Squid slows down when a file with more than 25000
>URLs to block is loaded
>
>
>Hello
>
>I am running Squid 2.5 Stable 6 on a Pentium4 1.8 Ghz and 256 Mbytes RAM.
I
>am trying to put this proxy in a production environment soon, but,
although
>squid is performing just fine all tasks, when I began to try the ACL
tests,
>it seems to slow down (very much) when a blacklist file is loaded. The
>configuration is the following:
>
>acl denegar url_regex "/opt/squid/blacklist"
>
>
>This blacklist file has 25000 sites on it, and it seems to take down
squid.
>I don't know if you guys can provide me some tips so I can tune up my
squid
>proxy. Can you tell me if I am using the wrong hardware configuration, if
I
>need more RAM, or if I just have to change some stuff in the squid.conf
>file.
>
>
>I'd appreciate your help
>
>
>Regards
>
>
>
>
>Pablo Romero

url_regex is a last resort, and very CPU intensive. Use dstdomain instead
in any instance that you can (i.e. instead of "url_regex site\.domain" use
"dstdomain .site.domain") and you'll find performance improves greatly.

Chris

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Received on Mon Jan 31 2005 - 08:32:20 MST