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    SubjectRe: 2.4 vm, program load, page faulting, ...
    >>>>> William Lee Irwin (WLI) writes:

    WLI> On Mon, Mar 17, 2003 at 10:02:21AM -0500, 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...

    WLI> SVR4 did and saw an improvement wrt. page fault rate, according
    WLI> to Vahalia.

    WLI> I'd like to see whether this is useful for Linux.

    I tried this on dual P3 year and half ago and didn't see any improvement

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