dubois@uwmacc.UUCP (Paul DuBois) (06/26/86)
A short while back, there was a query about using LightspeedC with
a Ram disk on a 512K Mac. The problem is that you can't really do
anything interesting with LS *and* the system in a ramdisk - in fact,
you can't even run it. You can run with one or the other in the
ramdisk, but: with just LS in the rd you still can't really do
much because it's *just* big enough to give itself memory problems
on a compile. Things go ok with just the system file in the rd.
I conjectured that perhaps one could hack out *some* of LS and put
it in the system file. This would allow one to put the system in
the rd and also *part* of LS, the idea being to push up closer
to the critical point. Having said that, I'm not sure exactly what
the critical point *is*, but I can say that its worthwhile to do the
following.
What I do: I used ResEdit to put CODE 10 and CODE 12 into the
system that gets booted into the ramdisk. (I'll bet *that* violates
the fascist licensing agreement!! :-) Then I deleted CODE 10 and
12 from the copy of LS that I launch (If you leave them in, then
the resource manager will find the ones in LS itself, making the ones
in the system file useless). I boot up, eject the boot disk, run
the ramdisk's minifinder (to make sure the system being used is the
one on the ramdisk, yes you need to do this!), put in the LS disk
and launch LS. It works.
I chose CODE 10 and 12 because they are of pretty good size, so a
fairly hefty chunk of code is swapping from ram, not disk. I end up
with a ramdisk of 120K. This is big enough to prevent compiling large
files, but the project mechanism is sufficiently nice that you shouldn't be
doing that anyway! (...he says, experiencing cognitive dissonance...)
My question: does anybody know what kind of code is in each segment?
I chose 10 and 12 on the basis of size only - it would be nice to
load in seqments that correspond to whatever activities I do most
often. I'd rather not have editor segments in ram if I'm compiling all
the time, for instance.
--
Paul DuBois UUCP: {allegra,ihnp4,seismo}!uwvax!uwmacc!dubois |
ARPA: dubois@easter --+--
|
"Well, we can't give an award to a _dead_ pig," said |
the loud speaker. "It's never been done."