Opcache Control Panel

Details Files Reset Recheck Refresh
memory
128M
89M69%free
39M30%used
0wasted
keys
16K
14K86%free
12027%scripts
10556%wasted
hits
73K
72K98%hits
12021%misses
0blacklist
restarts
11
11manual
0keys
0memory

general

Host4iyjslg2yn
PHP VersionPHP 7.4.33 apache2handler Linux
Opcache VersionZend OPcache 7.4.33
Uptime12 days and 21 hours
Last Restart2 days ago

memory

Used Memory38.8M
Free Memory89.2M
Wasted Memory0
Current Wasted Percentage0

statistics

Num Cached Scripts1202
Num Cached Keys2257
Max Cached Keys16229
Hits73451
Oom Restarts0
Hash Restarts0
Manual Restarts11
Misses1202
Blacklist Misses0
Blacklist Miss Ratio0
Opcache Hit Rate98.4

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