OPcache improves PHP performance by storing precompiled script bytecode
in shared memory, thereby removing the need for PHP to load and parse
scripts on each request [1].
Add an option to enable opcache in php. AC_CHECK_FUNC isn't suitable for a
cross-compile environment, so pass the configure options instead to force
dlopen detection that is necessary to have extension support enabled.
On a standard phpbench test, I see a performance improvement of > 40%.
[1] http://php.net/manual/en/book.opcache.php
Signed-off-by: Anuj Mittal <anuj.mittal@intel.com>
Signed-off-by: Armin Kuster <akuster808@gmail.com>
