[squid-users] Fine Tuning - Suggestions If you would..

As an experiment, I implemented SQUID 2.6 on my network to see if we
could reduce our bandwidth utilization. I ran it for about a week in
production and after getting through my other work, I was finally able
to analyze my access logs using squeezer2 and see how we fared.
According to the report that reviewed, my Hit Cache was about 31% and we
managed to save about 9% on our bandwidth utilization. Frankly, I was
hoping for squid to make a bigger impact than that, but I am aware that
this is probably going to take some more tuning. My question is how do I
go about doing that?
I'd like to increase see a much bigger hit cache ratio and a larger
bandwidth savings. Also, should I consider running squid for a longer
period of time before performing any kind of analysis?
I'm posting my squid.conf file. Any advice, chastisement, rebuke, etc
would be appreciated.

TIA,

Errol Neal

###
acl QUERY urlpath_regex cgi-bin \?
                 no_cache deny QUERY
cache_mem 128 MB
refresh_pattern . 0 20% 4320
refresh_pattern -i jpg$ 0 50% 8640
refresh_pattern -i png$ 0 50% 8640
refresh_pattern -i gif$ 0 50% 8640
refresh_pattern -i swf$ 0 50% 8640
refresh_pattern -i js$ 0 50% 8640
refresh_pattern -i css$ 0 50% 8640
refresh_pattern -i pdf$ 0 50% 8640
refresh_pattern -i flv$ 0 50% 8640
refresh_pattern -i avi$ 0 50% 8640
cache_replacement_policy heap LFUDA
memory_replacement_policy heap LFUDA
maximum_object_size 150096 KB
minimum_object_size 0 KB
fqdncache_size 4096
ipcache_size 4096
logfile_rotate 0
access_log /usr/local/squid-2.6/var/logs/access.log
cache_log /usr/local/squid-2.6/var/logs/cache.log
cache_store_log /usr/local/squid-2.6/var/logs/cache_store.log
half_closed_clients off
cache_swap_high 95
cache_swap_low 90
cache_dir aufs /var/squid/cache1 228828 25 256
cache_dir aufs /var/squid/cache2 228828 25 256
buffered_logs on
http_port 3128 transparent
acl localnet src 172.16.100.0/255.255.252.0
acl localhost src 127.0.0.1/255.255.255.255
acl CONNECT method CONNECT
acl all src 0.0.0.0/0.0.0.0
http_access allow localnet
http_access allow localhost
http_access deny all
###

__________________________________________
Errol Uriel Neal Jr.
Sr. Network Administrator
DFI International, Inc.
1717 Pennsylvania Ave NW, Suite 1300
Washington, DC 20006
Tel (202)452-6955
Fax (202)452-6910
eneal@dfi-intl.com
www.dfi-intl.com
Received on Wed Oct 18 2006 - 10:28:13 MDT