Opcache Control Panel

Details Files Reset Recheck Refresh
memory
384M
369M96%free
15M3%used
0wasted
keys
128K
128K99%free
355scripts
37wasted
hits
23K
23K98%hits
3721%misses
0blacklist
restarts
0
0manual
0keys
0memory

general

Hostizuf60du2yloe6lvayc9ppz
PHP VersionPHP 7.0.29 apache2handler Linux
Opcache VersionZend OPcache 7.0.29
Uptime9 hours and 45 minutes

memory

Used Memory14.8M
Free Memory369.2M
Wasted Memory0
Current Wasted Percentage0

statistics

Num Cached Scripts355
Num Cached Keys392
Max Cached Keys130987
Hits23207
Oom Restarts0
Hash Restarts0
Manual Restarts0
Misses372
Blacklist Misses0
Blacklist Miss Ratio0
Opcache Hit Rate98.4

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