20:30:54:396 log timer task size: 1
18:53:05:857 log timer task size: 1
19:42:06:905 log task queue not empty
19:42:06:905 log task size: 1
19:42:06:906 log before pop task size: 1
19:42:06:906 log after task size: 0
19:42:07:421 log timer task size: 1