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List:       squid-users
Subject:    Re: [squid-users] Slow connections
From:       Joe Cooper <joe () swelltech ! com>
Date:       2002-07-31 3:30:51
[Download RAW message or body]

What does the cachemanager have to say?

Try:

client mgr:info

Check the service times for hits, misses, and DNS lookups at a time when 
things are slow.

Check memory usage.  Is there any chance Squid is going into swap, even 
just a little bit?

Also check browsing from the proxy server itself to make sure there 
isn't some weird issue in your network that is affecting the proxy:

lynx http://www.some-problem-site.com

and to check it likewise through the proxy:

client http://www.some-problem-site.com

Is lynx noticeably faster than the client at retrieving the page 
(remembering that Lynx is a real browser, client is just a simple HTTP 
client with no HTML knowledge--a more accurate test would be to use wget 
with and without the proxy to retrieve some set of files a few times and 
compare the averages to see if Squid is the problem, or some other 
aspect of the proxies network configuration is to blame).



Ryan O'Rourke wrote:
> Well, I have looked into the possibility of DNS slowing down my squid, but
> there don't seem to be any problems with it.
> A look in the cache.log doesn't seem out of the ordinary to me (what is "FD
> 4" though?):
> [root@shirley cgi-bin]# cat /usr/local/squid/logs/cache.log |grep DNS
> 2002/07/29 19:03:28| Performing DNS Tests...
> 2002/07/29 19:03:28| Successful DNS name lookup tests...
> 2002/07/29 19:03:28| DNS Socket created on FD 4
> 2002/07/30 08:51:40| Performing DNS Tests...
> 2002/07/30 08:51:40| Successful DNS name lookup tests...
> 2002/07/30 08:51:40| DNS Socket created on FD 4
> [root@shirley cgi-bin]# cat /usr/local/squid/logs/cache.log |grep dns
> 2002/07/30 08:51:15| CACHEMGR: root@127.0.0.1 requesting 'idns'
> 2002/07/30 08:53:46| CACHEMGR: root@127.0.0.1 requesting 'idns'
> [root@shirley cgi-bin]#
> 
> Any other suggestions?
> Thank you.
> Ryan
> 
> 
>>-----Original Message-----
>>From:	Joe Cooper [SMTP:joe@swelltech.com]
>>Sent:	Monday, July 29, 2002 12:16 PM
>>To:	Ryan O'Rourke
>>Cc:	squid-users@squid-cache.org
>>Subject:	Re: [squid-users] Slow connections
>>
>>
>>Check your cache.log, access.log and cachemgr for clues about where 
>>things are slowing down.  DNS is often the culprit when someone in your 
>>situation (i.e. very few users) says "My Squid is slow".
>>
>>
> 



-- 
Joe Cooper <joe@swelltech.com>
Web caching appliances and support.
http://www.swelltech.com


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