Module « numpy.testing »

Fonction measure - module numpy.testing

Signature de la fonction measure

def measure(code_str, times=1, label=None) 

Description

measure.__doc__

    Return elapsed time for executing code in the namespace of the caller.

    The supplied code string is compiled with the Python builtin ``compile``.
    The precision of the timing is 10 milli-seconds. If the code will execute
    fast on this timescale, it can be executed many times to get reasonable
    timing accuracy.

    Parameters
    ----------
    code_str : str
        The code to be timed.
    times : int, optional
        The number of times the code is executed. Default is 1. The code is
        only compiled once.
    label : str, optional
        A label to identify `code_str` with. This is passed into ``compile``
        as the second argument (for run-time error messages).

    Returns
    -------
    elapsed : float
        Total elapsed time in seconds for executing `code_str` `times` times.

    Examples
    --------
    >>> times = 10
    >>> etime = np.testing.measure('for i in range(1000): np.sqrt(i**2)', times=times)
    >>> print("Time for a single execution : ", etime / times, "s")  # doctest: +SKIP
    Time for a single execution :  0.005 s