Opcache Control Panel

Details Files Reset Recheck Refresh
memory
320M
294M91%free
26M8%used
0wasted
keys
128K
128K99%free
105scripts
9wasted
hits
2145
204095%hits
1054%misses
0blacklist
restarts
140
140manual
0keys
0memory

general

Hostlvgou
PHP VersionPHP 7.2.2 fpm-fcgi Linux
Opcache VersionZend OPcache 7.2.2
Uptime4.5 years and 21 hours
Last Restart1 hour ago

memory

Used Memory26.4M
Free Memory293.6M
Wasted Memory0
Current Wasted Percentage0

statistics

Num Cached Scripts105
Num Cached Keys114
Max Cached Keys130987
Hits2040
Oom Restarts0
Hash Restarts0
Manual Restarts140
Misses105
Blacklist Misses0
Blacklist Miss Ratio0
Opcache Hit Rate95.1

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