Zero Penalty Hit on Squid 3.1.x

[Fabiano Carlos Heringer <bigu@xxxxxxxxxxxxxxxxxxxx>]

Hey guys, in the squid the ZPH it´s already enabled by default or its 
necessary to enable something?

I´ve installed the squid with --enable-zph-qos option, and put three 
options on my squid.conf to mark packets with diferente ToS, but i 
didn´t get this packets marked, how can enable this?
qos_flows local-hit=0x10
qos_flows sibling-hit=0x10
qos_flows parent-hit=0x10
qos_flows disable-preserve-miss

How can I use that? I guess my squid it´s not working correctly with HIT 
sites.

Thanks!