[lkml]   [2006]   [Jul]   [1]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
Messages in this thread
    SubjectRe: [patch 0/2] sLeAZY FPU feature
    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

    To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
    the body of a message to
    More majordomo info at
    Please read the FAQ at

     \ /
      Last update: 2006-07-02 00:06    [W:0.018 / U:4.532 seconds]
    ©2003-2016 Jasper Spaans. hosted at Digital OceanAdvertise on this site