benchmark

961a7682 - Vary batch size when running dynamic shapes benchmarks (#154805)

Vary batch size when running dynamic shapes benchmarks (#154805) Summary: This better measures the actual runtime performance of dynamic shapes where we aren't guaranteed to have similar shapes as the original hint. X-link: https://github.com/pytorch/pytorch/pull/154805 Approved by: https://github.com/Skylion007 ghstack dependencies: #154802, #154826, #154822, #154823 Reviewed By: seemethere Differential Revision: D75811385 fbshipit-source-id: 3deccb5c569ce3a99e681c1f5e6f632d7875131b