Opcache Control Panel

Details Files Reset Recheck Refresh
memory
128M
81M63%free
47M36%used
0wasted
keys
16K
15K92%free
9976%scripts
1751%wasted
hits
235K
234K99%hits
997misses
0blacklist
restarts
0
0manual
0keys
0memory

general

Hostlocalhost
PHP VersionPHP 7.2.34 apache2handler Linux
Opcache VersionZend OPcache 7.2.34
Uptime9 hours and 59 minutes

memory

Used Memory46.9M
Free Memory81.1M
Wasted Memory0
Current Wasted Percentage0

statistics

Num Cached Scripts997
Num Cached Keys1172
Max Cached Keys16229
Hits239424
Oom Restarts0
Hash Restarts0
Manual Restarts0
Misses997
Blacklist Misses0
Blacklist Miss Ratio0
Opcache Hit Rate99.6

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
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