(This is a cross post from percona.tv – the home of percona material in video form.)
The video has been posted online:
It relates to InnoDB built-in and InnoDB plugin. I left out Percona Server and XtraDB for simplicity.
If you want to learn more about this topic, I suggest taking a look at our full day course on InnoDB/XtraDB, the talk “Introduction to the InnoDB Storage Engine for MySQL” (Morgan Tocker) at Collaborate, “Innodb and XtraDB Architecture and Performance Optimization” (Peter Zaitsev) at the MySQL conference.