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    SubjectRe: [patch 1/13] Qsort
    On Sul, 2005-01-23 at 05:05, Jesper Juhl wrote:
    > On Sun, 23 Jan 2005, Andi Kleen wrote:
    > Even with large data sets that are mostly unsorted shell sorts performance
    > is close to qsort, and there's an optimization that gives it O(n^(3/2))
    > runtime (IIRC), and another nice property is that it's iterative so it
    > doesn't eat up stack space (as oposed to qsort which is recursive and eats
    > stack like ****)...

    qsort also has bad worst case performance which matters if you are
    sorting data provided by a hostile source.

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