Opcache Control Panel

Details Files Reset Recheck Refresh
memory
320M
261M81%free
59M18%used
0wasted
keys
128K
124K96%free
24581%scripts
19121%wasted
hits
387K
384K99%hits
2648misses
0blacklist
restarts
1
1manual
0keys
0memory

general

HostVM_204_92_centos
PHP VersionPHP 7.0.4 apache2handler Linux
Opcache VersionZend OPcache 7.0.6-dev
Uptime14 hours and 27 minutes
Last Restart11 hours ago

memory

Used Memory58.8M
Free Memory261.2M
Wasted Memory0
Current Wasted Percentage0

statistics

Num Cached Scripts2458
Num Cached Keys4370
Max Cached Keys130987
Hits393278
Oom Restarts0
Hash Restarts0
Manual Restarts1
Misses2648
Blacklist Misses0
Blacklist Miss Ratio0
Opcache Hit Rate99.3

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