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From: anton@mips.complang.tuwien.ac.at (Anton Ertl)
Newsgroups: comp.arch
Subject: Re: Threads (was Re: MSI interrupts)
Date: Wed, 02 Apr 2025 06:25:56 GMT
Organization: Institut fuer Computersprachen, Technische Universitaet Wien
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scott@slp53.sl.home (Scott Lurndal) writes:
>Unix SVR4ES/MP actually had
>both kernel threads (called lightweight processes (LWP)) and user-level
>threads in an M-N setup (M user threads multiplexed on N kernel threads).
>
>Didn't turn out to be particularly useful.

Maybe the SVR4ES/MP stuff was not particularly useful.  Combining
user-level threads and kernel threads in an M-N setup has turned out
to be very useful in, e.g., Erlang applications.

- anton
-- 
'Anyone trying for "industrial quality" ISA should avoid undefined behavior.'
  Mitch Alsup, <c17fcd89-f024-40e7-a594-88a85ac10d20o@googlegroups.com>