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    SubjectRe: [patch 0/2] sLeAZY FPU feature
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    On Sun, 2006-07-02 at 03:40 +1000, Nick Piggin wrote:

    > What sort of test?

    the one I did was long running FPU app (calculating PI using FPU)

    > Any idea of the results for a best case microbenchmark
    > (something like two threads ping-pong a couple of futexes between them,
    > in between doing a single FPU op)

    ok I wrote a test scenario for this; the performance gain I get with
    this is 8.5%

    the FPU part of the hot loop I used is
    A = 0.3 * (A+B);
    with A and B doubles



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