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Re^5: Huge perl binary file

by mbethke (Hermit)
on Jul 13, 2012 at 21:40 UTC ( #981731=note: print w/ replies, xml ) Need Help??


in reply to Re^4: Huge perl binary file
in thread Huge perl binary file

Um...no...only the R/O sections. Programs have initialized R/W spaces that once written are gone. There'd be no reason to have those sections marked as COW, unless you already had someone sharing the page (like a forked copy). But any unrelated process likely wouldn't use a COW copy, as they'd need the pristine data as it was supposed to be when the program loaded.
Sure, any overview of virtual memory processes this length is bound to be oversimplified in some place. But we can safely ignore this detail as it doesn't differ between dynamically vs. statically linked programs.


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