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From: Larry McVoy <lm@mcvoy.com>
To: Derek Fawcus <dfawcus+lists-tuhs@employees.org>
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Subject: Re: [TUHS] ATC/OSDI'21 joint keynote: It's Time for Operating
 Systems to Rediscover Hardware (Timothy Roscoe)
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On Fri, Sep 17, 2021 at 10:03:42PM +0100, Derek Fawcus wrote:
> On Fri, Sep 17, 2021 at 11:07:10AM -0700, Larry McVoy wrote:
> > 
> > Apple, much to my surprise, has been thinking about this stuff.
> > The M1 is one of the better thought out chips in a long time.
> 
> > I especially liked the idea of slow (and low battery draw)
> > processors for some apps, and fast ones for apps that need
> > fast.  It's an obvious idea in retrospect but I hadn't thought
> > to do it that way.  Clever.
> 
> I'd suggest that is not Apple, but ARM.  That was sort of the whole
> point of their BIG.little architecture with performance and efficiency
> cores.

Credit to ARM, but M1 was where I saw it first.  The M1 performance is
pretty impressive as well.  Reminds me of LED bulbs: "Wait, these are
brighter, use less power, and cost less?  How is that a thing?"