TokuDB is a drop-in replacement for any other storage engine (including InnoDB) so you can switch engines without changing your application. TokuDB is open source, and is available in both a Community Edition and an Enterprise Edition. It is one of
Disabling Transparent HugePages in Ubuntu 14.04 Server LTS
Need might arise to turn off transparent_hugepages which is by default ON in Ubuntu 14.04 LTS Server Version. This might apply to the other distro’s and also to other versions of Ubuntu. Checking transparent_hugepages To check if transparent_hugepages is on