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Date:      Mon, 24 Aug 1998 22:41:26 +0000
From:      Mike Smith <mike@smith.net.au>
To:        Chuck Robey <chuckr@glue.umd.edu>
Cc:        Kent A Vander Velden <graphix@iastate.edu>, freebsd-current@FreeBSD.ORG
Subject:   Re: Threads across processors 
Message-ID:  <199808242241.WAA02879@dingo.cdrom.com>
In-Reply-To: Your message of "Mon, 24 Aug 1998 23:45:31 -0400." <Pine.BSF.4.00.9808242343510.361-100000@picnic.mat.net> 

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> 
> On Mon, 24 Aug 1998, Kent A Vander Velden wrote:
> 
> > 
> >   Hi.  Does -current support spliting the threads of a single process
> > across multiple processors?
> 
> Current still has user threads, which are pretty much unaware of which
> processor there on.  There's been work towards kernel threads, but it's
> not yet to the point that you can play with it.

This level of thread support requires that *all* thread mutexes be 
handled by the kernel (atomicity guarantee).  It's several major steps 
beyond where we are now, and not something that's necessarily a good 
idea.

-- 
\\  Sometimes you're ahead,       \\  Mike Smith
\\  sometimes you're behind.      \\  mike@smith.net.au
\\  The race is long, and in the  \\  msmith@freebsd.org
\\  end it's only with yourself.  \\  msmith@cdrom.com



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