desktop_browser.py 文件源码

def wait_for_idle(self):
        """Wait for no more than 50% of a single core used for 500ms"""
        import psutil
        logging.debug("Waiting for Idle...")
        cpu_count = psutil.cpu_count()
        if cpu_count > 0:
            target_pct = 50. / float(cpu_count)
            idle_start = None
            end_time = monotonic.monotonic() + self.START_BROWSER_TIME_LIMIT
            idle = False
            while not idle and monotonic.monotonic() < end_time:
                check_start = monotonic.monotonic()
                pct = psutil.cpu_percent(interval=0.1)
                if pct <= target_pct:
                    if idle_start is None:
                        idle_start = check_start
                    if monotonic.monotonic() - idle_start >= 0.4:
                        idle = True
                else:
                    idle_start = None