you might want to check out this thread http://www.mail-archive.com/squid-users@xxxxxxxxxxxxxxx/msg56216.html cheers ivan On Wed, Mar 17, 2010 at 4:55 PM, Muhammad Sharfuddin <m.sharfuddin@xxxxxxxxxx> wrote: > Squid Cache: Version 2.7.STABLE5(squid-2.7.STABLE5-2.3) > kernel version: 2.6.27 x86_64 > CPU: Xeon 2.6 GHz CPU > Memory: 2 GB > /var/cache/squid is ext3, mounted with 'noacl' and 'noatime' options > number of users using this proxy: 160 > number of users using simultaneously/concurrently using this proxy: 72 > > I found that squid is consuming too much cpu, average cpu idle time is > 49 only. > > I have attached the output 'top -b -n 7', and 'vmstat 1' > > below is the output of squid.conf > > squid.conf: > --------- > > http_port 8080 > cache_mgr administrator@xxxxxxxx > cache_mem 1024 MB > cache_dir aufs /var/cache/squid 20000 32 256 > visible_hostname gateway.test.com > refresh_pattern ^ftp: 1440 20% 10080 > refresh_pattern ^gopher: 1440 0% 1440 > refresh_pattern -i \.(gif|png|jpg|jpeg|ico)$ 10080 90% 43200 > refresh_pattern -i \.(iso|avi|wav|mp3|mp4|mpeg|swf|flv|x-flv)$ 43200 90% > 432000 > refresh_pattern -i \.(deb|rpm|exe|zip|tar|tgz|ram|rar|bin|ppt|doc|tiff)$ > 10080 90% 43200 > refresh_pattern -i \.index.(html|htm)$ 0 40% 10080 > refresh_pattern -i \.(html|htm|css|js)$ 1440 40% 40320 > refresh_pattern . 0 40% 40320 > cache_swap_low 78 > cache_swap_high 90 > > maximum_object_size_in_memory 100 KB > maximum_object_size 12288 KB > > fqdncache_size 2048 > ipcache_size 2048 > > acl myFTP port 20 21 > acl ftp_ipes src "/etc/squid/ftp_ipes.txt" > http_access allow ftp_ipes myFTP > http_access deny myFTP > > acl porn_deny url_regex "/etc/squid/domains.deny" > http_access deny porn_deny > > acl vip src "/etc/squid/vip_ipes.txt" > http_access allow vip > > acl entweb url_regex "/etc/squid/entwebsites.txt" > http_access deny entweb > > acl mynet src "/etc/squid/allowed_ipes.txt" > http_access allow mynet > > > please help, why squid is utilizing so much of cpu > > > -- > Regards > Muhammad Sharfuddin | NDS Technologies Pvt Ltd | +92-333-2144823 > >