[TUHS] Macs and future unix derivatives

[Larry McVoy]

For the record, I've never seen the Solbourne code but I wanted to.  Seemed
like they were Unix people.   They took SunOS to a better place.  I suspect
Greg Limes would agree.

On Tue, Feb 09, 2021 at 07:56:00PM -0700, Warner Losh wrote:
> On Tue, Feb 9, 2021 at 6:41 PM Larry McVoy <lm at mcvoy.com> wrote:
> 
> > Which is part of the reason we liked it.  I loved SunOS 4.x but it was
> > also a uniprocessor kernel (Greg Limes tried to make it SMP but it was not
> > a kernel that wanted to be SMP).  I loved it because I could understand
> > it and it was a bit more complex than v7.
> >
> 
> David Barak and the OS group as Solbourne wwere able to do it for OS/MP.
> First as a ASMP kernel where CPU0 ran the unix kernel, but scheduled jobs
> for all the other CPUs, the as  SMP where the kernel could run on any CPU
> with progressively finer locking on each release.
> 
> Warner

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Larry McVoy            	     lm at mcvoy.com             http://www.mcvoy.com/lm