Dear I'm using the 3.2.0.13-20111022-r11381 When set worker 2 In squid.conf Has i have 2 CPUs Squid did not want to start with the following error terminate called after throwing an instance of 'TextException' what(): theGroupBSize > 0 Aborted When you have a dedicated server for squid with multiple CPU, is it mandatory to set worker has the total CPUs installed on the computer ?