On 10/31/19 10:41 PM, David Gesswein via vcf-midatlantic wrote:
The machine wasn't powerfull enough to run X.
Of course it was, it was just never ported. Sun-2 systems run X just fine, with the same CPU at the same clock rate.
My first X was X11R5 on Sparc and PA-RISC processors so later and coloring my opinion of what was possible. How much memory was needed to usefully run X11 on a Sun-2?
I ran it in 2MB on my 2/170. It swapped itself senseless, but it ran and I could get work done. It was much better (both I and my disks were a lot happier) when I added a 4MB board. I ran X10R4 on a VAX, and jumped to X11R3 on the Sun-2. When X11R4 came out, I built that, and it was so much faster I was actually startled by it when I first started it up. The R3-R4 difference was amazing. I will never forget that day. As an interesting benchmark, it took about the same time to compile X11R4 on a Sun-2/170 with 6MB and a MicroVAX-II with 9MB, both with fast disks. They were both within a few minutes of twelve hours. -Dave -- Dave McGuire, AK4HZ New Kensington, PA