[semprot]

Originally Posted by NiteWave

you can search apc_delete() and apc_cas() in php source if these functions exist

any configuration options in your site's php script regarding apc?

also change the settings of
apc.user_entries_hint 4096
to 10, to 16K(16384) etc, see the status of fragment.

I've checked the code, there is no apc_delete() & apc_cas(), but the apc_store() uses third parameter (the TTL -- that i set to 5 hours)

PHP Code:

apc_store($this->id($id), $value, $vbulletin->options['vbo_ttl']); 


And there is apc_clear_cache, but i believe the apc_clear_cache is called manually from admin page. And i've just changed apc.user_entries_hint to 16384

apc.cache_by_default	1
apc.canonicalize	1
apc.coredump_unmap	0
apc.enable_cli	1
apc.enabled	1
apc.file_md5	0
apc.file_update_protection	2
apc.filters	
apc.gc_ttl	3600
apc.include_once_override	0
apc.lazy_classes	0
apc.lazy_functions	0
apc.max_file_size	20M
apc.mmap_file_mask	/tmp/apc.gcrVQI
apc.num_files_hint	1000
apc.preload_path	
apc.report_autofilter	0
apc.rfc1867	0
apc.rfc1867_freq	0
apc.rfc1867_name	APC_UPLOAD_PROGRESS
apc.rfc1867_prefix	upload_
apc.rfc1867_ttl	3600
apc.serializer	default
apc.shm_segments	1
apc.shm_size	6144M
apc.slam_defense	1
apc.stat	0
apc.stat_ctime	0
apc.ttl	0
apc.use_request_time	1
apc.user_entries_hint	16384
apc.user_ttl	7200
apc.write_lock	1