hi Guys , @alex , you said that just add the "workers" in squid.conf ?? how many workers do i need ? i think i have 24 cores with 2 main cpu , i think 12 of them are idle beacuse 1 main cou is working !!! i will print my cores in my server : *[root@squid ahmd]# mpstat -P ALL Linux 3.7.5 (squid) 03/08/2013 _x86_64_ (24 CPU) 10:24:04 PM CPU %usr %nice %sys %iowait %irq %soft %steal %guest %idle 10:24:04 PM all 2.61 0.00 1.27 9.58 0.00 0.60 0.00 0.00 85.94 10:24:04 PM 0 1.19 0.00 0.84 18.50 0.00 0.27 0.00 0.00 79.19 10:24:04 PM 1 11.35 0.02 5.17 34.72 0.00 0.30 0.00 0.00 48.44 10:24:04 PM 2 0.35 0.00 0.41 14.69 0.00 0.01 0.00 0.00 84.54 10:24:04 PM 3 3.12 0.00 1.55 21.61 0.00 0.00 0.00 0.00 73.72 10:24:04 PM 4 0.39 0.00 0.41 14.31 0.00 0.01 0.00 0.00 84.89 10:24:04 PM 5 1.99 0.00 1.05 18.78 0.00 0.00 0.00 0.00 78.17 10:24:04 PM 6 0.42 0.00 0.44 14.63 0.00 0.01 0.00 0.00 84.49 10:24:04 PM 7 1.28 0.00 0.61 11.41 0.00 0.00 0.00 0.00 86.70 10:24:04 PM 8 0.29 0.00 0.39 14.83 0.00 0.01 0.00 0.00 84.48 10:24:04 PM 9 1.16 0.00 0.58 8.92 0.00 0.00 0.00 0.00 89.34 10:24:04 PM 10 0.28 0.00 0.38 14.75 0.00 0.01 0.00 0.00 84.58 10:24:04 PM 11 1.11 0.00 0.53 5.88 0.00 0.00 0.00 0.00 92.48 10:24:04 PM 12 0.10 0.00 0.11 5.35 0.00 0.00 0.00 0.00 94.44 10:24:04 PM 13 11.94 0.00 5.14 1.17 0.00 4.03 0.00 0.00 77.71 10:24:04 PM 14 1.29 0.00 0.65 4.38 0.00 0.56 0.00 0.00 93.13 10:24:04 PM 15 10.42 0.00 4.66 1.65 0.00 3.68 0.00 0.00 79.59 10:24:04 PM 16 1.18 0.00 0.61 4.34 0.00 0.50 0.00 0.00 93.38 10:24:04 PM 17 0.18 0.00 0.09 2.00 0.00 0.03 0.00 0.00 97.69 10:24:04 PM 18 0.03 0.00 0.07 4.43 0.00 0.00 0.00 0.00 95.47 10:24:04 PM 19 8.15 0.00 3.69 1.58 0.00 2.88 0.00 0.00 83.70 10:24:04 PM 20 0.05 0.00 0.08 4.43 0.00 0.00 0.00 0.00 95.45 10:24:04 PM 21 7.28 0.00 3.36 1.45 0.00 2.45 0.00 0.00 85.47 10:24:04 PM 22 0.02 0.00 0.08 4.65 0.00 0.00 0.00 0.00 95.25 10:24:04 PM 23 0.07 0.00 0.04 0.91 0.00 0.00 0.00 0.00 98.98 * ============================= asume i have squid.conf file as below : [root@squid ~]# cat /etc/squid/squid.conf # # Recommended minimum configuration: # # Example rule allowing access from your local networks. # Adapt to list your (internal) IP networks from where browsing # should be allowed acl localnet src 10.0.0.0/8 # RFC1918 possible internal network acl localnet src 172.16.0.0/12 # RFC1918 possible internal network acl localnet src 192.168.0.0/16 # RFC1918 possible internal network acl localnet src fc00::/7 # RFC 4193 local private network range acl localnet src fe80::/10 # RFC 4291 link-local (directly plugged) machines ############################## acl mynet src 1x.x.x.6.0/22 x.x.x.0/20 ############################## acl SSL_ports port 443 acl Safe_ports port 80 # http acl Safe_ports port 21 # ftp acl Safe_ports port 443 # https acl Safe_ports port 70 # gopher acl Safe_ports port 210 # wais acl Safe_ports port 1025-65535 # unregistered ports acl Safe_ports port 280 # http-mgmt acl Safe_ports port 488 # gss-http acl Safe_ports port 591 # filemaker acl Safe_ports port 777 # multiling http acl CONNECT method CONNECT # # Recommended minimum Access Permission configuration: # # Only allow cachemgr access from localhost http_access allow localhost manager http_access deny manager # Deny requests to certain unsafe ports http_access deny !Safe_ports # Deny CONNECT to other than secure SSL ports http_access deny CONNECT !SSL_ports # We strongly recommend the following be uncommented to protect innocent # web applications running on the proxy server who think the only # one who can access services on "localhost" is a local user #http_access deny to_localhost #################################################### visible_hostname squid cache_effective_user squid cache_effective_group squid #################################################### ##################################################### # # INSERT YOUR OWN RULE(S) HERE TO ALLOW ACCESS FROM YOUR CLIENTS # # Example rule allowing access from your local networks. # Adapt localnet in the ACL section to list your (internal) IP networks # from where browsing should be allowed http_access allow localnet http_access allow localhost http_access allow mynet # And finally deny all other access to this proxy http_access deny all # Squid normally listens to port 3128 http_port 65000 http_port 127.0.0.1:3128 http_port x.x.x.x:65000 http_port 3129 tproxy # Uncomment and adjust the following to add a disk cache directory. cache_dir ufs /usr/local/squid/var/cache/squid 100 16 256 # Leave coredumps in the first cache dir coredump_dir /usr/local/squid/var/cache/squid # Add any of your own refresh_pattern entries above these. refresh_pattern ^ftp: 1440 20% 10080 refresh_pattern ^gopher: 1440 0% 1440 refresh_pattern -i (/cgi-bin/|\?) 0 0% 0 refresh_pattern . ================================ what do i need to modify with it to get maximum cpu usage ?? ======================== @alex also , i noted that u enclosed two files in http://pastebin.com/dbXNEj5F what about the 2nd file ?? with my best regards -- View this message in context: http://squid-web-proxy-cache.1019090.n4.nabble.com/Squid-3-3-2-and-SMP-tp4658901p4658911.html Sent from the Squid - Users mailing list archive at Nabble.com.