Opcache Control Panel

Details Files Reset Recheck Refresh
memory
192M
178M92%free
14M7%used
0wasted
keys
128K
128K99%free
1scripts
0wasted
hits
5
480%hits
120%misses
0blacklist
restarts
17
17manual
0keys
0memory

general

HostSJ-SSD
PHP VersionPHP 8.3.8 fpm-fcgi Linux
Opcache VersionZend OPcache 8.3.8
Uptime2 months and 20 hours
Last Restart19 minutes ago

memory

Used Memory14M
Free Memory178M
Wasted Memory0
Current Wasted Percentage0

statistics

Num Cached Scripts1
Num Cached Keys1
Max Cached Keys130987
Hits4
Oom Restarts0
Hash Restarts0
Manual Restarts17
Misses1
Blacklist Misses0
Blacklist Miss Ratio0
Opcache Hit Rate80

functions

opcache_reset
opcache_get_status
opcache_compile_file
opcache_invalidate
opcache_get_configuration
opcache_is_script_cached

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