execution.py 文件源码

def _run_with_timing(run, nruns):
        """
        Run function `run` and print timing information.

        Parameters
        ----------
        run : callable
            Any callable object which takes no argument.
        nruns : int
            Number of times to execute `run`.

        """
        twall0 = time.time()
        if nruns == 1:
            t0 = clock2()
            run()
            t1 = clock2()
            t_usr = t1[0] - t0[0]
            t_sys = t1[1] - t0[1]
            print("\nIPython CPU timings (estimated):")
            print("  User   : %10.2f s." % t_usr)
            print("  System : %10.2f s." % t_sys)
        else:
            runs = range(nruns)
            t0 = clock2()
            for nr in runs:
                run()
            t1 = clock2()
            t_usr = t1[0] - t0[0]
            t_sys = t1[1] - t0[1]
            print("\nIPython CPU timings (estimated):")
            print("Total runs performed:", nruns)
            print("  Times  : %10s   %10s" % ('Total', 'Per run'))
            print("  User   : %10.2f s, %10.2f s." % (t_usr, t_usr / nruns))
            print("  System : %10.2f s, %10.2f s." % (t_sys, t_sys / nruns))
        twall1 = time.time()
        print("Wall time: %10.2f s." % (twall1 - twall0))