Not a Netflix employee, but at my last role we disabled THP on every instance we had. We had issues with databases (MySQL/Cassandra/HBase), Hadoop, and Java applications.
I hear it's gotten a lot better since then, and the compactor doesn't freeze stuff like it used to.
THP can cause serious problems (like “freeze your application for 1s while I compact its pages without asking”). Use at your own risk. It’s much better to use explicit huge pages.
I hear it's gotten a lot better since then, and the compactor doesn't freeze stuff like it used to.