At 8:33 PM +0100 7/16/03, David Cantrell wrote:As far as the program is concerned, it's a complete copy. But yes, most modern virtual memory implementations will, I believe, do copy on write. I haven't actually tested this on OS X though :-)
OK, I'm curious; how _would_ one go about testing this?
The easiest way to do so is to snag the Darwin source and take a look at some of the low-level MMU manipulation code in the kernel. It should be pretty obvious whether (though not necessarily how :) it's done.
--
Dan
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Dan Sugalski even samurai
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