On 02/23/2013 09:10 PM, Amos Jeffries wrote: > But once you are reaching the above types of limit there is no magic > setting that can gain big %-points more speed. Actually, there is: "workers N" :-). I have seen SMP Squid handling about Gbit of traffic while doing authentication, URL rewriting, and ICAP. It just takes a few workers and a few more CPU cores... While SMP is not a solution to every problem and does have serious limitations in some environments, it is a very good performance booster in many situations. HTH, Alex.