ubuntu dalla php5.4 usa php5enmod
conf
[apc]
apc.enabled=1
apc.shm_segments=1
apc.optimization=0
;apc.shm_size=128
apc.ttl=7200
apc.user_ttl=7200
apc.num_files_hint=1024
apc.mmap_file_mask=/tmp/apc.XXXXXX
apc.enable_cli=0
; compilare esplicitamente o usa filter
apc.cache_by_default=off
;apc.stat=0
