Re: APC with horde/imp: 99.9% miss rate and only one cached file

Well, downgrading APC from 3.1.3b1 to 3.0.19 fixed it. Working great now! On 04/08/2010 02:21 PM, Derek Chen-Becker wrote: > I suspect I've either done something horribly wrong or found a weird > bug, probably the former. I'm running PHP 5.2.13 on Solaris 10 under > Apache 2.2.14. Memory usage is 98.8% free (default 1 slice of 30MB). > Here are stats on the cache: > > Cached Files 1 (288.2 KBytes) > Hits 4146 > Misses 3579033 > Request Rate (hits, misses) 358.68 cache requests/second > Hit Rate 0.42 cache requests/second > Miss Rate 358.26 cache requests/second > Insert Rate 0.00 cache requests/second > Cache full count 0 > > And here is my config in php.ini: > > extension=apc.so > error_reporting = E_ALL ^ E_DEPRECATED > apc.report_autofilter = 1 > log_errors = 1 > > If I restart apache, a different file gets cached each time (it rotates > between a very small subset of all of the PHP files in horde). > Sometimes, 2 or even 3 files get cached, but I've never had it go above > 3. I've been googling around and reading the list archives but I can't > find anything that seems to be related to this. Am I misunderstanding > the purpose of APC? I thought that it would attempt to cache all PHP > files that are requested. > > I turned on the report_autofilter in an attempt to diagnose the issue, > but nothing shows up in the error log. Here is the config as shown by > apc.php: > > apc.cache_by_default 1 > apc.canonicalize 1 > apc.coredump_unmap 0 > apc.enable_cli 0 > 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 1M > apc.mmap_file_mask > apc.num_files_hint 1000 > apc.preload_path > apc.report_autofilter 1 > apc.rfc1867 0 > apc.rfc1867_freq 0 > apc.rfc1867_name APC_UPLOAD_PROGRESS > apc.rfc1867_prefix upload_ > apc.rfc1867_ttl 3600 > apc.shm_segments 1 > apc.shm_size 30 > apc.stat 1 > apc.stat_ctime 0 > apc.ttl 0 > apc.use_request_time 1 > apc.user_entries_hint 4096 > apc.user_ttl 0 > apc.write_lock 1 > > > Any help would be greatly appreciated. > > Thanks, > > Derek > -- ---------------------------------------------------------------------- Derek Chen-Becker Senior Network Engineer, Security Architect CPI Corp, Inc. 1706 Washington Ave St. Louis, MO 63103 Phone: 314-231-7711 x6455 Fax: 314-613-6724 dbecker@cpicorp.com PGP Key available from public key servers Fingerprint: E4C4 26C0 8588 E80A C29F 636D 1FBE 0FE3 2871 4AE8 ----------------------------------------------------------------------