Opcache Control Panel

Details Files Reset Recheck Refresh
memory
320M
292M91%free
28M8%used
0wasted
keys
128K
128K99%free
137scripts
11wasted
hits
81K
81K99%hits
137misses
0blacklist
restarts
139
139manual
0keys
0memory

general

Hostlvgou
PHP VersionPHP 7.2.2 fpm-fcgi Linux
Opcache VersionZend OPcache 7.2.2
Uptime4.5 years and 19 hours
Last Restart5 days ago

memory

Used Memory27.7M
Free Memory292.3M
Wasted Memory0
Current Wasted Percentage0

statistics

Num Cached Scripts137
Num Cached Keys148
Max Cached Keys130987
Hits82438
Oom Restarts0
Hash Restarts0
Manual Restarts139
Misses137
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