Opcache Control Panel

Details Files Reset Recheck Refresh
memory
128M
114M89%free
14M10%used
0wasted
keys
7963
764996%free
1742%scripts
1401%wasted
hits
273
9936%hits
17463%misses
0blacklist
restarts
0
0manual
0keys
0memory

general

HostiZm5e4umbmo65o6t8ccgjtZ
PHP VersionPHP 7.3.13 apache2handler Linux
Opcache VersionZend OPcache 7.3.13
Uptime5 hours and 30 minutes

memory

Used Memory13.8M
Free Memory114.2M
Wasted Memory0
Current Wasted Percentage0

statistics

Num Cached Scripts174
Num Cached Keys314
Max Cached Keys7963
Hits99
Oom Restarts0
Hash Restarts0
Manual Restarts0
Misses174
Blacklist Misses0
Blacklist Miss Ratio0
Opcache Hit Rate36.3

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