New submission from Prahlad Yeri: I'm running Python 3.6 on Windows 7. It wastes a lot of cpu cycles when inside a loop. In attached screenshot, you'll find that ~25% cpu is used by Python, while all I'm doing is running a pomodoro script that waits for a specific timeslot to complete. Here is the code for pomodoro.py that runs the while loop inside start_tracking() function:
https://github.com/prahladyeri/PyPomodoro/blob/master/pomodoro.py def start_tracking(task): global last_beep print("Working on %s:%s (%d minutes)." % (task['category'], task['name'], task['duration'])) print("Started tracking at %s." % (datetime.datetime.now().strftime("%H:%M"))) print("Beep interval is set to %d minutes." % config.slot_interval) session_start_time = datetime.datetime.now() task_end_time = session_start_time + datetime.timedelta(minutes=task['duration']) last_beep = datetime.datetime.now() notified = False while(True): now = datetime.datetime.now() diff = (now - last_beep).total_seconds() / 60.0 #in minutes minutes_worked = round(diff) reminder_text = "%s:%s" % (task['category'], task['name']) #diff = diff.total_seconds() / (60.0) if (diff >= config.slot_interval): #30 #notify ---------- components: Windows files: Python_high_CPU_Windows.png messages: 284787 nosy: paul.moore, prahladyeri, steve.dower, tim.golden, zach.ware priority: normal severity: normal status: open title: Python 3.6 on Windows wastes a lot of CPU cycles in a while loop type: resource usage versions: Python 3.6 Added file: http://bugs.python.org/file46169/Python_high_CPU_Windows.png _______________________________________ Python tracker <rep...@bugs.python.org> <http://bugs.python.org/issue29173> _______________________________________ _______________________________________________ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
