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    SubjectRe: NUMA API observations
    Andi Kleen wrote:
    > On Mon, Jun 14, 2004 at 02:21:28PM -0700, Paul Jackson wrote:
    >
    >>Andi wrote:
    >>
    >>>How should a user space application sanely discover the cpumask_t
    >>>size needed by the kernel? Whoever designed that was on crack.
    >>>
    >>>I will probably make it loop and double the buffer until EINVAL
    >>>ends or it passes a page and add a nasty comment.
    >>
    >>I agree that a loop is needed. And yes someone didn't do a very
    >>good job of designing this interface.
    >
    >
    > I add some code to go upto a page now.
    >
    > This adds a hardcoded limit of 32768 CPUs to libnuma. That's not
    > nice, but we have to stop somewhere in case the EINVAL is returned
    > for other reason

    Should be enough for desktop machines...

    --
    -bill davidsen (davidsen@tmr.com)
    "The secret to procrastination is to put things off until the
    last possible moment - but no longer" -me
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