> Hi!
quoted text
> I have a question about NPTL.
> Are NPTL are still based on `clone` system call?

Yes.

quoted text
> Are NPTL threads are
> "processes" internally?

No. By definition, all the threads belong to a single process. NPTL threads
are based on KSEs (kernel scheduling entities). A non-threaded process is
also a KSE. A threaded process is more than one KSEs. All KSE are,
obviously, scheduled by the kernel.

quoted text
> Thanks!

You're welcome.

DS


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