block_reporter.py 文件源码

def record(self, duration):
        self.agent.log('Activating block profiler.')

        signal.setitimer(signal.ITIMER_REAL, self.SAMPLING_RATE, self.SAMPLING_RATE)
        time.sleep(duration)
        signal.setitimer(signal.ITIMER_REAL, 0)

        self.agent.log('Deactivating block profiler.')

        self.profile_duration += duration

        self.agent.log('Block profiler CPU overhead per activity second: {0} seconds'.format(self.profile._overhead / self.profile_duration))