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    SubjectRe: [PATCH] Only show RESOURCES_64BIT on relevant architectures
    On Tue, Oct 30, 2007 at 02:37:19AM -0600, Matthew Wilcox wrote:

    > On Mon, Oct 29, 2007 at 10:03:16PM -0500, Kumar Gala wrote:
    > > The same is true on PPC32. Its a per platform thing. However, I'm
    > > not sure if we could hide it from the user. There are cases on the
    > > same HW platform that you want to run with just 32-bit phys (for
    > > performance).
    > Have you measured what the performance difference is?

    Two identical kernel configs, one with one without CONFIG_RESOURCES_64BIT:

    text data bss dec hex filename
    3334684 152208 138624 3625516 37522c vmlinux
    3340352 152464 138752 3631568 3769d0 vmlinux

    So that's 5668, 256 bytes data and 128 bytes of bss for a total of 6052
    bytes. Not a whole lot but I still fear some users on the most
    claustrophobic systems will mind.

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      Last update: 2007-10-30 12:45    [W:0.020 / U:7.064 seconds]
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