[TUHS] UNIX on S/370

Arthur Krewat krewat at kilonet.net
Tue Nov 21 05:56:04 AEST 2017


I would love to see the results of that, including more information 
about the architecture in question.


On 11/20/2017 2:10 PM, Larry McVoy wrote:
> On Mon, Nov 20, 2017 at 02:07:27PM -0500, Paul Winalski wrote:
>> It would mean that you wouldn't have to implement machine check
>> support and other hardware error handling.  The VM hypervisor would do
>> that for you.  It would also let you run multiple versions of UNIX
>> simultaneously.  Very convenient if you're doing kernel or driver
>> development.
> Indeed.  I'm currently trying to convince Netflix that the way to get the
> most performance out of a NUMA machine is to boot a different kernel on
> each NUMA domain.  One way we might demo that is on a 4 domain system
> lock down 3 hypervisors and their guest OS to 3/4 of the NUMA domains
> and give the host kernel the 4th.
>



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