Hello Sir : When i use Squid 3.5.5 and start Squid . worker is 2 in squid config When i use ps tool and i found number of pid is different between starting runing squid and normal runing squid . ps -u squiduser | grep "squid" at starting runing squid there are five processing at starting runing squid. 1255 ? 00:00:01 squid 1256 ? 00:00:01 squid 1257 ? 00:00:01 squid 1258 ? 00:00:01 squid 1259 ? 00:00:01 squid but there are two processing at normal running squid 1258 ? 00:00:01 squid 1259 ? 00:00:01 squid I guess whether squid will use more process at start runing , after squid finished init squid , processing will be two squid or /stable number Maybe it will be squid 3.5.5 new feature , but i don't find the different at squid 3.5.2 Best Regards John / _______________________________________________ squid-users mailing list squid-users@xxxxxxxxxxxxxxxxxxxxx http://lists.squid-cache.org/listinfo/squid-users