On Fri, 29 Dec 2017, Frank Wille wrote:
Indeed. The Sun-3 MMU was custom made by Sun and honors only 28 bits of VA from a given address (the "context" is global).Ahh! Thanks. That's what I tried to remember.
Wow, only a team of uber geeks could dig up a fact like that and elucidate it as the cause. Nicely done.
Indeed. Having more memory has become more important during the last years. I'm not even sure if gcc can still be built on NetBSD/68k hardware.
I don't know about GCC, but I know the last time I tried to compile Blender on a PC with 2GB of RAM (and 10G of swap) it kept hanging. At one point I let it run on an i7 box for four days. It still never worked until I built the package on a box with 16G of RAM. I was watching vmstat the whole time and at one point the VSZ was around 12G for the participating compiler processes. That was the first time I ever saw an example that dramatic.
It's cool to have newer compilers, but I'm sad that they are generally so unfriendly to older hardware (I know I know, march of progress). Same with C99 vs C11. C99 was a bunch of awesome long-time-coming changes I thought were well thought out. C11 uhh, well, Mom said if I couldn't say something nice....
-Swift