Messages in this thread | | | Subject | Re: 2.4 vm, program load, page faulting, ... | From | Alex Tomas <> | Date | 17 Mar 2003 19:37:22 +0300 |
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>>>>> 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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