Does Percona optimize tables itself?

Question

MySQL

I noticed from the list of mysql processes that periodically there are processes optimizing different tables (OPTIMIZE TABLE). And it is not clear where they come from. We do not have code that would make such requests.
Whether can be such that perkona itself optimizes tables?
Server 5.6.27-75.0-log Percona Server (GPL)

Answer 1

Taki is not. Percon does nothing. Found a code that optimized.