[ori_b]

Yes, and Linux. at least historically, has not used them without explicit program opt-in. Often advice is to disable transparent huge pages for performance reasons. Not sure about other operating systems.

See, for example, https://www.pingcap.com/blog/transparent-huge-pages-why-we-d...

[jorvi]

Huh, no? The usual advice is to enable THPs for performance, you only disable them in specific scenarios.