hi amos , thanks alot but i have here something changed in cache manager when i added aufs and mapped workers to aufs hardsisk i found that : Mean Object Size: 37.85 KB at previous it was always 32KB does that mean that squid get the average mean value cache over workers and put it here is cahce manager ? NOTE THAT IN AUFS workers i put max object size = 10M i mean i was supposed to see something higher than 37.85kB ????? can u explain that ? regards ----- Dr.x -- View this message in context: http://squid-web-proxy-cache.1019090.n4.nabble.com/Unbalaned-Cpu-cores-with-squid-3-4-3-with-centos-6-4-64-bit-tp4664748p4664849.html Sent from the Squid - Users mailing list archive at Nabble.com.