[Info-vax] VMS x86 performance ?

[Dave Froble]

On 10/31/2020 1:20 PM, Bill Gunshannon wrote:
> On 10/31/20 11:44 AM, Scott Dorsey wrote:
>> Bill Gunshannon  <bill.gunshannon at gmail.com> wrote:
>>>>
>>>> So which one is the most secure?
>>>
>>> My money is on RSTS or Primos.
>>
>> It's definitely not Pr1mos.  When I was in grad school, the college I
>> was at
>> was running Pr1mos 19, and I knew at least ten different ways to get
>> system
>> access from a user account.  Not all of them were timing issues either!
>>
>> Pr1mos had so many different layers of compatibility stuff, so many
>> different
>> operating modes, that there were all kinds of little places for
>> security holes
>> to hide.  Complexity is the enemy of security.
>
> Try them on Rev 24. Rev 19 was old even before I faded from the
> Primos world (well, kinda faded, I still have it running on
> emulators here and now!)
> Still, I expect Primos has had about as much hacking attacks
> pointed at it as VMS.
>
> Still leaves RSTS, my favorite OS.  :-)
>
> bill
>
>

I confess to curiosity.  What is there about RSTS that you like so much?

RSTS was my first serious OS, and I liked it.  But there were so many 
restrictions.  16 bit being the most significant.  There was the dreaded 
TKB.  (Yes, TKB taught one to be precise and know a bit about what one 
was doing.)

About 2 months after I started on VMS, RSTS was forgotten ....

-- 
David Froble                       Tel: 724-529-0450
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