Opcache Control Panel

Details Files Reset Recheck Refresh
memory
128M
119M93%free
9M6%used
0wasted
keys
16K
16K99%free
3scripts
0wasted
hits
45
4293%hits
36%misses
0blacklist
restarts
0
0manual
0keys
0memory

general

HostRiver-Crossing
PHP VersionPHP 8.2.29 apache2handler Linux
Opcache VersionZend OPcache 8.2.29
Uptime5 hours and 23 minutes

memory

Used Memory8.8M
Free Memory119.2M
Wasted Memory0
Current Wasted Percentage0

statistics

Num Cached Scripts3
Num Cached Keys3
Max Cached Keys16229
Hits42
Oom Restarts0
Hash Restarts0
Manual Restarts0
Misses3
Blacklist Misses0
Blacklist Miss Ratio0
Opcache Hit Rate93.3

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