1b46c1cb1650ef0b332cd2e3a84b3c0e4a764975,dipy/tracking/benchmarks/bench_streamline.py,,bench_length,#,55

Before Change

    repeat = 1
    nb_points_per_streamline = 100
    nb_streamlines = int(1e5)
    streamlines = [np.random.rand(nb_points_per_streamline,
                                  3).astype("float32")
                   for i in range(nb_streamlines)]

    print("Timing length() in Cython ({0} streamlines)".format(nb_streamlines))
    cython_time = measure("length(streamlines)", repeat)
    print("Cython time: {0:.3}sec".format(cython_time))

After Change

    print("Speed up of {0:.2f}x".format(python_time/cython_time))

    streamlines = DATA["streamlines_arrseq"]
    cython_time_arrseq = measure("length(streamlines)", repeat)
    print("Cython time (ArraySequence): {0:.3}sec".format(cython_time_arrseq))
    print("Speed up of {0:.2f}x".format(python_time/cython_time_arrseq))

    // Make sure all methods produce the same results.
    assert_array_equal([length_python(s) for s in DATA["streamlines"]],

Instances