Opcache Control Panel

Details Files Reset Recheck Refresh
memory
128M
77M59%free
51M40%used
0wasted
keys
128K
127K98%free
1176scripts
260wasted
hits
1188
121%hits
117698%misses
0blacklist
restarts
26
26manual
0keys
0memory

general

Hostizt4nfbq736g1ssjxobnp8z
PHP VersionPHP 7.3.5 fpm-fcgi Linux
Opcache VersionZend OPcache 7.3.5
Uptime16 months and 12 hours
Last Restart5 minutes ago

memory

Used Memory51.4M
Free Memory76.6M
Wasted Memory0
Current Wasted Percentage0

statistics

Num Cached Scripts1176
Num Cached Keys1436
Max Cached Keys130987
Hits12
Oom Restarts0
Hash Restarts0
Manual Restarts26
Misses1176
Blacklist Misses0
Blacklist Miss Ratio0
Opcache Hit Rate1

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