Java can work with transparent hugepages (in addition to preallocated hugepages), but you just use +AlwaysPreTouch to map them in during the startup so that at

Java can work with transparent hugepages (in addition to preallocated hugepages), but you just use +AlwaysPreTouch to map them in during the startup so that at runtime there won't be any delays or jitter. Redis should add a similar option