Reapply D25856891: [te] Benchmark comparing fused overhead to unfused (#50543)
Summary:
Pull Request resolved: https://github.com/pytorch/pytorch/pull/50543
Original commit changeset: 2d2f07f79986
Was part of a stack that got reverted. This is just a benchmark.
ghstack-source-id: 119825594
Test Plan: CI
Reviewed By: navahgar
Differential Revision: D25912439
fbshipit-source-id: 5d9ca45810fff8931a3cfbd03965e11050180676
