On Mon, 6 May 2024 20:53:22 +0000 Joe Damato wrote: > Add a simple test for the epoll busy poll ioctls, using the kernel > selftest harness. > > This test ensures that the ioctls have the expected return codes and > that the kernel properly gets and sets epoll busy poll parameters. > > The test can be expanded in the future to do real busy polling (provided > another machine to act as the client is available).
Hm, we get: # timeout set to 3600 # selftests: net: epoll_busy_poll # TAP version 13 # 1..5 # # Starting 5 tests from 2 test cases. # # RUN invalid_fd.test_invalid_fd ... # # OK invalid_fd.test_invalid_fd # ok 1 invalid_fd.test_invalid_fd # # RUN epoll_busy_poll.test_get_params ... # # OK epoll_busy_poll.test_get_params # ok 2 epoll_busy_poll.test_get_params # # RUN epoll_busy_poll.test_set_invalid ... # # epoll_busy_poll.c:204:test_set_invalid:Expected -1 (-1) == ret (0) # # epoll_busy_poll.c:205:test_set_invalid:EPIOCSPARAMS should error busy_poll_budget > NAPI_POLL_WEIGHT # # epoll_busy_poll.c:207:test_set_invalid:Expected EPERM (1) == errno (22) # # epoll_busy_poll.c:208:test_set_invalid:EPIOCSPARAMS errno should be EPERM busy_poll_budget > NAPI_POLL_WEIGHT # # test_set_invalid: Test failed # # FAIL epoll_busy_poll.test_set_invalid # not ok 3 epoll_busy_poll.test_set_invalid # # RUN epoll_busy_poll.test_set_and_get_valid ... # # OK epoll_busy_poll.test_set_and_get_valid # ok 4 epoll_busy_poll.test_set_and_get_valid # # RUN epoll_busy_poll.test_invalid_ioctl ... # # OK epoll_busy_poll.test_invalid_ioctl # ok 5 epoll_busy_poll.test_invalid_ioctl https://netdev-3.bots.linux.dev/vmksft-net/results/584001/98-epoll-busy-poll/stdout
