> From: Al Kossow
> The issue would be things like the swap partition on a unix disk or
> whatever the equivalent is under RSX
Which is why, as I mentioned, that we're including the ability to have
virtual disks which store their data in RAM, not on permanent storage - their
contents won't last throught a power cycle, but for paging/swapping that's
fine.
Also, on Unix, /tmp, and pipes - both sources of lots of writes that don't
need to be saved across power cycles - although the latter will require a tiny
system tweak, to move it off the root partition.
(It's like a one line change - refer to 'pipedev' instead of 'rootdev' in
pipe(). And a tiny system call to set 'pipedev', and a command to call it.
I'd rather do it that way, instead of just adding 'pipedev' to c.c, since one
doesn't want to switch to the RAM disk until one has 'mkfs'd a file system
on it.)
> From: Warner Losh
> had problems finding out just how fast Q-Bus can go
Something like 700 nsec for a cycle (best case), so assuming 16-bit
transfers, a max of a little over 20 Mbit/sec.
Noel
