Squid and CPU usage

[Rodrigo G. Tavares de Souza]

Hi,

    I'd like to know if is it common Squid works with 100% of the CPU.
    I'm using a Pentium III 900, running Squid + Apache + IPFW.

    It's happening always when I get a problem with the DSL, when it get 
slow.
    Is it normal, or could I do some configuration to fix that?

Best Regards,
Rodrigo Souza
Sao Paulo - Brazil