Informations and tune for Purge system!

[Christian Marinelli]

Hi all,
i have some questions about MySQL purge system.
I read from the official documentation the purge system is automatically scheduled so i don't need to enable it in some way, but i didn't understand very weel how often it run; if i'm not wrong, i read it runs every 128 DELETE queryes and i can change this value with the innodb_purge_rseg_truncate_frequency parameter (for example if i want it runs more frequently).
Can you confirm me if i understood correcly the documentation?
Unfortunalty i worked for a long time with PostgreSQL and here there is the VACUUM process, i have a few experience with MySQL, i am learning day by day.
Thanks a lot in advance
Christian