Opcache Control Panel

Details Files Reset Recheck Refresh
memory
128M
60M46%free
68M53%used
0wasted
keys
128K
126K98%free
17621%scripts
440wasted
hits
122K
119K98%hits
24711%misses
0blacklist
restarts
72
72manual
0keys
0memory

general

Hostizt4nfbq736g1ssjxobnp8z
PHP VersionPHP 7.3.5 fpm-fcgi Linux
Opcache VersionZend OPcache 7.3.5
Uptime5 months and 19 hours
Last Restart4 hours ago

memory

Used Memory68.4M
Free Memory59.6M
Wasted Memory0
Current Wasted Percentage0

statistics

Num Cached Scripts1762
Num Cached Keys2202
Max Cached Keys130987
Hits122018
Oom Restarts0
Hash Restarts0
Manual Restarts72
Misses2471
Blacklist Misses0
Blacklist Miss Ratio0
Opcache Hit Rate98

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