Messages in this thread |  | | Date | Mon, 17 Mar 2003 23:43:24 -0800 | From | "Paul Albrecht" <> | Subject | Re: 2.4 vm, program load, page faulting, ... |
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On Monday, March 17, 2003 Rik van Riel wrote:
> > The mmap() syscall only sets up the VMA info, it doesn't fill in the page tables. That only happens when the process page faults. > > Note that filling in a bunch of page table entries mapping already present pagecache pages at exec() time might be a good idea. It's just that nobody has gotten around to that yet... >
What doesn't make sense to me is that a program's working set isn't loaded before it starts execution. Can the working set be approximated using the address_space object? Then the kernel would know what pages should be allocated when the text and data segments are memory mapped in binary load.
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