Unix V.3

[Jim van Keulen]

I am running a Unix V.2 system with 2 MB onboard memory.  Additional memory
can be added on the VME bus.  If I add kernel memory on the VME bus the
performance suffers, because processes are running in slow VME memory.
So I added VME memory in standaard space not seen by the kernel at startup
and use it for buffer cache and a ram disk.

Now how are things organized in V.3?  I noted that you can have gaps in
memory and should specify your memory in the configuration file.  The manual
says that memory should be listed in speed order, fastest first.  Is this
because System V.3 is doing something intelligent with placement of kernel
data structures en the buffer cache?


Jim van Keulen
dept. CS & M
Vrije Universiteit
Amsterdam