Opcache Control Panel

Details Files Reset Recheck Refresh
memory
128M
99M77%free
29M22%used
58Kwasted
keys
128K
128K99%free
225scripts
36wasted
hits
10K
10K97%hits
3052%misses
0blacklist
restarts
239
239manual
0keys
0memory

general

Hosthangzhou-web01
PHP VersionPHP 7.1.26 fpm-fcgi Linux
Opcache VersionZend OPcache 7.1.26
Uptime3 years and 10 hours
Last Restart11 hours ago

memory

Used Memory29.2M
Free Memory98.8M
Wasted Memory58880
Current Wasted Percentage0

statistics

Num Cached Scripts225
Num Cached Keys261
Max Cached Keys130987
Hits10312
Oom Restarts0
Hash Restarts0
Manual Restarts239
Misses305
Blacklist Misses0
Blacklist Miss Ratio0
Opcache Hit Rate97.1

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
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