apt-get install -y php-apc
/etc/php5/cli/conf.d/apc.ini
extension=apc.so apc.cache_by_default = On apc.coredump_unmap = Off apc.enable_cli = Off apc.enabled = On apc.file_update_protection = 2 apc.filters = "" apc.gc_ttl = 3600 apc.include_once_override = Off apc.max_file_size = 8M apc.mmap_file_mask = "" apc.num_files_hint = 1000 apc.report_autofilter = Off apc.rfc1867 = Off apc.rfc1867_freq = 0 apc.rfc1867_name = "APC_UPLOAD_PROGRESS" apc.rfc1867_prefix = "upload_" apc.shm_segments = 1 apc.shm_size = 150 apc.slam_defense = 0 apc.stat = On apc.stat_ctime = Off apc.ttl = 1 apc.user_entries_hint = 4096 apc.user_ttl = 1 apc.write_lock = On