Optimize opcache as documented on http://symfony.com/doc/current/perf…

…ormance.html

php/conf.d/php.ini

@@ -8,7 +8,8 @@ max_execution_time = 90
 date.timezone = UTC
 
 ; Some tweaks to improve performance
-realpath_cache_size = 256k
+realpath_cache_size=4096K
+realpath_cache_ttl=600
 
 ; Tweak opcache to your own needs, further reading:
 ;   https://secure.php.net/manual/en/opcache.installation.php
@@ -17,7 +18,7 @@ opcache.enable=1
 opcache.enable_cli=1
 opcache.memory_consumption=128
 opcache.interned_strings_buffer=8
-opcache.max_accelerated_files=10000
+opcache.max_accelerated_files=20000
 opcache.max_wasted_percentage=10
 
 ; Might make sense for some use cases (however not for dev, and validate_timestamps=0 would be better for prod)