benchmark

44e2e0d5 - refactor S3 scripts and add new functionality for userbenchmarks (#1520)

refactor S3 scripts and add new functionality for userbenchmarks (#1520) Summary: Step 1 of adding a new userbenchmark regression detector Pull Request resolved: https://github.com/pytorch/benchmark/pull/1520 Reviewed By: xuzhao9 Differential Revision: D44641005 Pulled By: janeyx99 fbshipit-source-id: 22097140297db472eae764443992d4a1de2ead12