Opcache Control Panel

Details Files Reset Recheck Refresh
memory
448M
305M68%free
136M30%used
7M1%wasted
keys
128K
121K94%free
41123%scripts
29872%wasted
hits
2M
2M99%hits
4357misses
0blacklist
restarts
17
17manual
0keys
0memory

general

HostiZ8vbbp64jsy2j9zrlxr8tZ
PHP VersionPHP 7.2.16 fpm-fcgi Linux
Opcache VersionZend OPcache 7.2.16
Uptime7 months and 13 hours
Last Restart5 days ago

memory

Used Memory136.4M
Free Memory304.7M
Wasted Memory7M
Current Wasted Percentage1.6

statistics

Num Cached Scripts4112
Num Cached Keys7099
Max Cached Keys130987
Hits2M
Oom Restarts0
Hash Restarts0
Manual Restarts17
Misses4357
Blacklist Misses0
Blacklist Miss Ratio0
Opcache Hit Rate99.8

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