Date: Tue, 04 Jun 1996 16:16:46 -0700 From: "Michael L. VanLoon -- HeadCandy.com" <michaelv@HeadCandy.com> To: Sean Eric Fagan <sef@kithrup.com> Cc: smp@freebsd.org Subject: Re: Unix/NT synchronization model (was: SMP progress?) Message-ID: <199606042316.QAA24168@MindBender.HeadCandy.com> In-Reply-To: Your message of Tue, 04 Jun 96 15:25:10 -0700. <199606042225.PAA15769@kithrup.com>
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>In article <1827.833925902.kithrup.freebsd.smp@critter.tfs.com> you write:
>>Reply-to: phk@freebsd.org
>>Frankly, we havn't spent much time seriously persuing this issue.
>Right now, it's going for extremely low-grained MP support -- only one
>processor can be in kernel mode at a time. If/when the secondary
>processor(s) can take an interrupt, it will probably have reached that goal,
>and will manage to improve performance.
Well, that's all very interesting... (I mean really -- thanks for the
info)
But maybe I'm not stating myself clearly. :-) What I'm really after is
recommendations on where I should look if I want to see how another
SMP Unix implements synchronization controls. I just want to find out
how other people have implemented it. All I know is Windows NT (SMP,
not in general, of course), and I want to see a contrasting
implementation.
For example, if I were to go find an OSF/1 (Digital Unix) system and
play around with it, would that be a good representation place to
start? Or would someone say "Oh no! Don't look at Digital Unix --
it's SMP support really sucks!" :-) I'm just looking for peoples'
ideas and opinions here -- not an over-riding edict. Tell me what
your favorite Unix SMP system is...
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Michael L. VanLoon michaelv@HeadCandy.com
--< Free your mind and your machine -- NetBSD free un*x >--
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Sun4/4c/4m, DEC MIPS, DEC Alpha, PC532, VAX, MVME68k, arm32...
NetBSD ports in progress: PICA, others...
Roll your own Internet access -- Seattle People's Internet cooperative.
If you're in the Seattle area, ask me how.
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