Opcache Control Panel

Details Files Reset Recheck Refresh
memory
128M
119M92%free
9M7%used
0wasted
keys
16K
16K99%free
2scripts
0wasted
hits
2
0hits
2misses
0blacklist
restarts
0
0manual
0keys
0memory

general

Hostvps-79b402ab
PHP VersionPHP 8.2.14 fpm-fcgi Linux
Opcache VersionZend OPcache 8.2.14
Uptime17 hours and 52 minutes

memory

Used Memory9M
Free Memory119M
Wasted Memory0
Current Wasted Percentage0

statistics

Num Cached Scripts2
Num Cached Keys2
Max Cached Keys16229
Hits0
Oom Restarts0
Hash Restarts0
Manual Restarts0
Misses2
Blacklist Misses0
Blacklist Miss Ratio0
Opcache Hit Rate0

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