I came to it all a bit later. I do recall the CDC salesthing saying something like "oh, you guys have some Unix around here? Have we got something for you!". And the systems guys brought up NOS/VE on the last CDC machines we ever bought.
On Wed, May 15, 2024 at 10:43 PM Chuck Guzis via cctalk < cctalk@classiccmp.org> wrote: > On 5/15/24 18:47, Ken Seefried via cctalk wrote: > > > Please...I'm trying very hard not to remember them (or NOS...worse, > NOS/VE). > > I left CDC at around the time that SCOPE 3.4 was being renamed NOS BE > and KRONOS was becoming NOS. I remember attending a design meeting for > the pager in what was to become NOS/VE. I asked the presenter if he'd > conferred with any of the virtual memory pager talent that CDC had > in-house. Blank stare. I informed him that the STAR-100 people had > lived in that particular hell since about 1969--and that demand paging > was not the way to run a shop. STAR had long-since switched to a > working set algorithm. > > Even that wasn't enough. If one selected a large (65 KW) page size and > set up certain vector instructions so that addresses crossed page > boundaries, it was impossible to get the required pages into memory all > at once. > > The system just sat there and thrashed.... > > --Chuck > >
