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Date:      Sat, 10 Aug 2002 20:56:46 -0700
From:      David Schultz <dschultz@uclink.Berkeley.EDU>
To:        Garrett Rooney <rooneg@electricjellyfish.net>
Cc:        Morten Rodal <morten@rodal.no>, kpieckiel@smartrafficenter.org, Bosko Milekic <bmilekic@unixdaemons.com>, Mario Pranjic <mario.pranjic@irb.hr>, freebsd-stable@FreeBSD.ORG
Subject:   Re: SMP kernel: FreeBSD vs. Linux 2.4.x
Message-ID:  <20020811035646.GB589@HAL9000.homeunix.com>
In-Reply-To: <20020809203934.GA94313@electricjellyfish.net>
References:  <Pine.GSO.4.32.0208091409570.6242-100000@nippur.irb.hr> <20020809091008.A87124@unixdaemons.com> <20020809164411.GC78503@pacer.dmz.smartrafficenter.org> <20020809171743.GB290@HAL9000.homeunix.com> <20020809203355.GE6050@slurp.rodal.no> <20020809203934.GA94313@electricjellyfish.net>

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Thus spake Garrett Rooney <rooneg@electricjellyfish.net>:
> > How does this compare to the approach NetBSD is taking?  The docs above
> > helped, but I am still a bit puzzled.
> > 
> > http://daily.daemonnews.org/view_story.php3?story_id=2969
> 
> NetBSD is following the approach set forth in the anderson paper,
> while FreeBSD is trying some new ideas that should provide for better
> performance, but are less well tested (i.e. nobody has implemented
> them before). 

That's what I heard, although I still don't know how the
approaches are different.  I read the Anderson paper, but I can't
seem to find any documentation about the FreeBSD approach.  (Given
the signal delivery problems we're currently having, I'd guess
that Julian et al. are going through the same hell that the
Solaris developers did when implementing threading.)  Could you
please ellaborate on the differences in the FreeBSD approach?

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