PHP7 doesn't have any default XHProf support and all other
investigated forks don't have stable PHP7. Tideways is under
active development and is easy to install. The data format
is compatible with XHProf so it is a drop-in replacement in that way.
dirname() is a slow function compared with __DIR__ and using
'/../'. Moodle has a large number of legacy files that are included
each time a page loads and is not able to use an autoloader as it is
functional code. This allows those required includes to perform as
best as possible in this situation.
version = planned 2015051100 release version
requires= current 2015050500 rc1 version
Note: On purpose, the course format social wrong version (2015102100)
has been kept unmodified. Looking forward a solution right now.