vmware workstation 15 pro, fedora workstation 34 1.2, install opencv, nng, import cv2 from pynng import Pair1 import numpy as np address = 'tcp://0.0.0.0:50000' with Pair1(listen = address, polyamorous = True) as svr : while(True) : msg = svr.recv_msg() frame = np.frombuffer(msg.bytes, dtype = np.uint8) frame = cv2.imdecode(frame, cv2.IMREAD_UNCHANGED) cv2.namedWindow('window', cv2.WINDOW_GUI_NORMAL) cv2.imshow('window', frame) if cv2.waitKey(1) == 27: break cv2.destroyAllWindows() in top command, systemd-oomd Occupy CPU wildly. _______________________________________________ test mailing list -- test@xxxxxxxxxxxxxxxxxxxxxxx To unsubscribe send an email to test-leave@xxxxxxxxxxxxxxxxxxxxxxx Fedora Code of Conduct: https://docs.fedoraproject.org/en-US/project/code-of-conduct/ List Guidelines: https://fedoraproject.org/wiki/Mailing_list_guidelines List Archives: https://lists.fedoraproject.org/archives/list/test@xxxxxxxxxxxxxxxxxxxxxxx Do not reply to spam on the list, report it: https://pagure.io/fedora-infrastructure