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    SubjectRe: TLB flush counters gone in 2.5.35-bk?
    Roberto Nibali wrote:
    >
    > Hello,
    >
    > I was just browsing over the latest bk tree when I saw the following change:
    >
    > ...
    > - unsigned long flushes;/* stats: count avoided flushes */
    > - unsigned long avoided_flushes;

    That was some statistical/debug code to evaluate how useful
    that particular optimisation was being. Answer: it saves
    30-35% of the global TLB invalidations coming out of there.

    But it had served its purpose.
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