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    SubjectRe: kernel page size explanation
    On Mon, 25 Jul 2005, VASM wrote:
    > i had one question
    > does the linux kernel support only one default page size even if the
    > processor on which it is working supports multiple ?

    No. Some architectures have compile-time support for multiple different
    page sizes (e.g. Itanium, SPARC64); many have support for a
    (non-swappable) `large pages) system, and a filesystem backed by huge
    pages. (Often, the kernel is stored in huge pages, to keep the number
    of page table entries wasted by the nonswappable kernel to a minimum.)

    What is *not* presently supported is using multiple page sizes to
    back userspace processes; that size is currently fixed at compile-time,
    even on architectures supporting multiple variably-sized pages.

    `But of course, GR is the very best relativity for the masses.'
    --- Wayne Throop
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      Last update: 2005-07-24 23:34    [W:0.018 / U:42.784 seconds]
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