tacker/the-great-web-framework-shootout — comment on commit 5dc762b686928056b70f4bbf7b36480007baca6a
File:  line 0
By Rebolon:

Another thing, to improve performance, the php.ini must be modified to load phar in cache. Use phar.cache_list directive.
That's usually the way we should use phar package, otherwise performance are really degraded and the bench is not fair.