Opcache Control Panel

Details Files Reset Recheck Refresh
memory
128M
111M86%free
17M13%used
0wasted
keys
16K
15K95%free
3912%scripts
3071%wasted
hits
1404
101172%hits
39327%misses
0blacklist
restarts
3
3manual
0keys
0memory

general

Hosthost9a35be367c
PHP VersionPHP 7.4.33 apache2handler Linux
Opcache VersionZend OPcache 7.4.33
Uptime3 hours and 40 minutes
Last Restart3 hours ago

memory

Used Memory17.5M
Free Memory110.5M
Wasted Memory0
Current Wasted Percentage0

statistics

Num Cached Scripts391
Num Cached Keys698
Max Cached Keys16229
Hits1011
Oom Restarts0
Hash Restarts0
Manual Restarts3
Misses393
Blacklist Misses0
Blacklist Miss Ratio0
Opcache Hit Rate72

functions

opcache_reset
opcache_invalidate
opcache_compile_file
opcache_is_script_cached
opcache_get_configuration
opcache_get_status

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