Opcache Control Panel

Details Files Reset Recheck Refresh
memory
320M
276M86%free
44M13%used
0wasted
keys
128K
127K99%free
593scripts
4wasted
hits
3509
346598%hits
441%misses
0blacklist
restarts
1
1manual
0keys
0memory

general

HostiZ2zec2u8brybdzlwa3b8xZ
PHP VersionPHP 7.0.20 fpm-fcgi Linux
Opcache VersionZend OPcache 7.0.20
Uptime3 minutes and 31 seconds
Last Restart55 seconds ago

memory

Used Memory43.8M
Free Memory276.2M
Wasted Memory0
Current Wasted Percentage0

statistics

Num Cached Scripts593
Num Cached Keys597
Max Cached Keys130987
Hits3465
Oom Restarts0
Hash Restarts0
Manual Restarts1
Misses44
Blacklist Misses0
Blacklist Miss Ratio0
Opcache Hit Rate98.7

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