From:	dahms AT ifk20 DOT mach DOT uni-karlsruhe DOT de
Subject:	RE: pthreads w/ cygwin32
26 Feb 1998 08:57:14 -0800 :
Message-ID:	<009C25F6.158850E0.1919.cygnus.gnu-win32@ifk20.mach.uni-karlsruhe.de>
To:	zow AT mdbs DOT com
Cc:	gnu-win32 AT cygnus DOT com, dahms AT ifk20 DOT mach DOT uni-karlsruhe DOT de

Hi Terry, you wrote:

: Something to watch out for is that NT's threads are kernel level threads.
: In most applications, this shouldn't make a difference, but there is the
: possibility that it could, particularly in how they are scheduled, and the
: fact that kernel threads are more expensive than user threads. If you have
: a processor intensive program, like simulation software, this could be a
: critical issue. At the moment, one of my projects is porting a user level
: threading library (similar to the Pthreads package) from UNIX to NT. One of
: the issues I'm going to look at is implementation both inside vs. on top of
: kernel threads. I have not made much progress yet, but when I do, I would
: be happy to send my results to you.

Did you look at appendix A of Jeffrey Richter's Advanced Windows NT (3.ed.)
about Fibers? They are user mode, added for easier porting from Unix to NT.


Bye, Heribert (dahms AT ifk20 DOT mach DOT uni-karlsruhe DOT de)
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