Opcache Control Panel

Details Files Reset Recheck Refresh
memory
128M
51M40%free
77M59%used
239Kwasted
keys
16K
13K83%free
253415%scripts
2031%wasted
hits
619M
619M99%hits
2572misses
0blacklist
restarts
0
0manual
0keys
0memory

general

Hostebsec
PHP VersionPHP 8.1.27 apache2handler Linux
Opcache VersionZend OPcache 8.1.27
Uptime11 days and 21 hours

memory

Used Memory76.5M
Free Memory51.2M
Wasted Memory244928
Current Wasted Percentage0.2

statistics

Num Cached Scripts2534
Num Cached Keys2737
Max Cached Keys16229
Hits619.4M
Oom Restarts0
Hash Restarts0
Manual Restarts0
Misses2572
Blacklist Misses0
Blacklist Miss Ratio0
Opcache Hit Rate100

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
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