Re^4: threads->create hangs (vs fork)

[BrowserUk]

So Perl boldly went and implemented (interpreter-based) threads (i.e. without OS support),

That is completely wrong.

Perl's iThreads are essentially thin wrappers over OS (kernel) threads:

1. pthreads on *nix;
2. Windows threads on Windows.

The term "interpreter threads", simply means that each kernel thread runs a separate instance of the Perl interpreter. In this way, each thread runs in its own distinct memory; despite that all of their memory is part of the same single process.

Equally, the rest of your post is a total misunderstanding of the implementation; and a complete misreading of the actual history.

Please refrain from further comment on a subject you clearly have nothing useful to contribute to.