Note that it's just not a single post, and there's additional further information in following the full thread. :)

Yes, and in the following messages the conclusion was that the regression is mitigated when using huge pages.

Which you always should use anyway if you can.

Hmmm, it's not always that clear cut.

For example, Redis officially advised people to disable it due to a latency impact:

Pretty sure Redis even outputs a warning to the logs upon startup when it detects hugepages are enabled.

Note that I'm not a Redis expert, I just remember this from when I ran it as a dependency for other software I was using.

	▲	fabian2k an hour ago \| parent [-]
		That's transparent huge pages, which are also not the setting recommended for PostgreSQL.