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    SubjectRe: Better CLONE_SETTLS support for Hammer
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    Andi Kleen wrote:

    > If you just want to save one mmap/allocation: I think the context switch
    > overhead will be more expensive than the allocation.

    And two more things:

    1. every process will already use the prctl(ARCH_SET_FS). We are
    talking here only about the 2nd thread and later. We need to use
    prctl(ARCH_SET_FS) for TLS support.


    2. May I remind you that you were in the crowd who complained when we
    requested a dedicated thread register? Yes, I still would prefer that
    but I have no energy to battle for that.

    - --
    - --------------. ,-. 444 Castro Street
    Ulrich Drepper \ ,-----------------' \ Mountain View, CA 94041 USA
    Red Hat `--' drepper at redhat.com `---------------------------
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