Opcache Control Panel

Details Files Reset Recheck Refresh
memory
192M
148M77%free
44M22%used
0wasted
keys
128K
127K99%free
1087scripts
150wasted
hits
24M
24M99%hits
1087misses
0blacklist
restarts
0
0manual
0keys
0memory

general

Hostopenvox.cn
PHP VersionPHP 7.1.13 apache2handler Linux
Opcache VersionZend OPcache 7.1.13
Uptime3 hours and 2 minutes

memory

Used Memory43.5M
Free Memory148.5M
Wasted Memory0
Current Wasted Percentage0

statistics

Num Cached Scripts1087
Num Cached Keys1237
Max Cached Keys130987
Hits23.5M
Oom Restarts0
Hash Restarts0
Manual Restarts0
Misses1087
Blacklist Misses0
Blacklist Miss Ratio0
Opcache Hit Rate100

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