test_system.py 文件源码

def test_per_cpu_times_2(self):
        # Simulate some work load then make sure time have increased
        # between calls.
        tot1 = psutil.cpu_times(percpu=True)
        stop_at = time.time() + 0.1
        while True:
            if time.time() >= stop_at:
                break
        tot2 = psutil.cpu_times(percpu=True)
        for t1, t2 in zip(tot1, tot2):
            t1, t2 = sum(t1), sum(t2)
            difference = t2 - t1
            if difference >= 0.05:
                return
        self.fail()