add delta to denoise in regression detector (#1616)
Summary:
Use a delta of 0.07 in anticipation that we'll get a lot of cpu noise still.
Pull Request resolved: https://github.com/pytorch/benchmark/pull/1616
Reviewed By: xuzhao9
Differential Revision: D45623742
Pulled By: janeyx99
fbshipit-source-id: 874c9108d16b012e75446b8a6773b403542eca8f
