The concept of Linux HugePages has existed for quite a while: for more than 10 years, introduced to Debian in 2007 with kernel version 2.6.23. Whilst a smaller page size is useful for general use, some memory intensive applications may gain performance by using bigger memory pages. By having bigger memory chunks available to them, [&]

https://www.percona.com/blog/2019/03/06/settling-the-myth-of-transparent-hugepages-for-databases/