[TUHS] PDP-7 Unix Paper

Larry McVoy lm at mcvoy.com
Wed Feb 14 12:21:22 AEST 2018

On Wed, Feb 14, 2018 at 10:30:52AM +1100, Dave Horsfall wrote:
> I'm still astonished at the constraints those guys had to suffer:
>     PDP-7 Unix provided a multitasking environment by dividing the 8K
>     words of memory into two halves.  The lower half of memory was
>     reserved for the kernel.  The upper half of memory was set aside for
>     the currently running process.
> But you try and tell the young people today that... and they won't believe
> you.

Don't even get me started.  Young people think that a VM is a server.
I wrote a microbenchmark suite, lmbench, and I get people sending me
email that they get inconsistent results on their VM.

The lack of knowledge that would make someone ask about that is stunning.

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