🚀 go-pugleaf

In article <CEDMAN.93Jan21153237@capitalist.princeton.edu> cedman@princeton.edu (Carl Edman) writes:
	Not quite so fast. All you found out that the BSD system call to
	enable swaping is a dummy call. From that one might conclude that the
	NeXT can not swap at all just as quickly as that it can not swap to a
	raw partition.  Fortunately that is not so as virtual memory is one of
	the system services which is provided by Mach through the mach_swapon
	system call and not BSD on a NeXT. And mach_swapon is _not_ a dummy
	call. Careful analysis of this call and its subroutines might reveal
	that indeed it is impossible to swap to a raw partition (as I believe
	it is). This analysis is left as an exercise to the reader.
	
	        Carl Edman


  As I mentioned to Carl in a mail message, I did look at mach_swapon
as well.  As far as I can tell, mach_swapon uses the vnode pager code.
This provides for paging to a file, not to a raw device.  

  One can also look at the virtual memory sub-system of 386bsd or
Berkeley net-2.  Both of them use the mach virtual memory system.

barry
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