Opcache Control Panel

Details Files Reset Recheck Refresh
memory
192M
170M88%free
22M11%used
0wasted
keys
128K
127K99%free
334scripts
301wasted
hits
76K
76K99%hits
334misses
0blacklist
restarts
20
20manual
0keys
0memory

general

HostSEA-SSD
PHP VersionPHP 8.3.8 fpm-fcgi Linux
Opcache VersionZend OPcache 8.3.8
Uptime2 months and 14 hours
Last Restart3 days ago

memory

Used Memory22.1M
Free Memory169.9M
Wasted Memory0
Current Wasted Percentage0

statistics

Num Cached Scripts334
Num Cached Keys635
Max Cached Keys130987
Hits77588
Oom Restarts0
Hash Restarts0
Manual Restarts20
Misses334
Blacklist Misses0
Blacklist Miss Ratio0
Opcache Hit Rate99.6

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