Opcache Control Panel

Details Files Reset Recheck Refresh
memory
192M
172M89%free
20M10%used
0wasted
keys
128K
127K99%free
236scripts
213wasted
hits
256
207%hits
23692%misses
0blacklist
restarts
91
91manual
0keys
0memory

general

HostSEA-SSD
PHP VersionPHP 8.3.8 fpm-fcgi Linux
Opcache VersionZend OPcache 8.3.8
Uptime9 months and 10 hours
Last Restart26 minutes ago

memory

Used Memory19.8M
Free Memory172.2M
Wasted Memory0
Current Wasted Percentage0

statistics

Num Cached Scripts236
Num Cached Keys449
Max Cached Keys130987
Hits20
Oom Restarts0
Hash Restarts0
Manual Restarts91
Misses236
Blacklist Misses0
Blacklist Miss Ratio0
Opcache Hit Rate7.8

functions

opcache_reset
opcache_get_status
opcache_compile_file
opcache_invalidate
opcache_get_configuration
opcache_is_script_cached

optimization levels

PassDescription
1Constants subexpressions elimination (CSE) true, false, null, etc.
Optimize series of ADD_STRING / ADD_CHAR
Convert CAST(IS_BOOL,x) into BOOL(x)
Convert INIT_FCALL_BY_NAME + DO_FCALL_BY_NAME into DO_FCALL
2Convert constant operands to expected types
Convert conditional JMP with constant operands
Optimize static BRK and CONT
3Convert $a = $a + expr into $a += expr
Convert $a++ into ++$a
Optimize series of JMP
4PRINT and ECHO optimization (defunct)
5Block Optimization - most expensive pass
Performs many different optimization patterns based on control flow graph (CFG)
9Optimize register allocation (allows re-usage of temporary variables)
10Remove NOPs
directives guide | functions guide | wiki.php.net | pecl | Zend source | OCP latest