Back out "Revert D15435461: [pytorch][PR] PyTorch ThroughputBenchmark" (#22185)
Summary:
Pull Request resolved: https://github.com/pytorch/pytorch/pull/22185
Original commit changeset: 72a0eac1658b
Differential Revision: D15981928
fbshipit-source-id: d2455d79e81c26ee90d41414cde8ac0f9b703bc3
