-- After running many flow, the ended BPIs remain which causes performance issues.

* Go to the XPM_params.properties files and in the "Purge BPi's auto parameters section,
set enable_purge_bpi to true

You can also set purge_bpi_delay which defines the interval between the end of a BPi and its autmatic purge and purge_bpi_timeout which set the time that the system waits after the bpi ended before deleting it.
All these values are in days