{"push_id":621996389,"size":1,"distinct_size":1,"ref":"refs/heads/master","head":"5c9a35286e17b8c0ef9968d0f013d02d44c38d8d","before":"488caf0c625d16185cc1ef9bd33c0862ce422073","commits":[{"sha":"5c9a35286e17b8c0ef9968d0f013d02d44c38d8d","author":{"email":"286db74d0e07b82bad8ca00edf56e68e60bdc1fa@163.com","name":"chknight"},"message":"resolve preemption","distinct":true,"url":"https://api.github.com/repos/chknight/pintos/commits/5c9a35286e17b8c0ef9968d0f013d02d44c38d8d"}]}