pytorch

a4ca394f - Revert "Revert D26907093: Add repeats to Timer.collect_callgrind(...)" (#54484)

Revert "Revert D26907093: Add repeats to Timer.collect_callgrind(...)" (#54484) Summary: Pull Request resolved: https://github.com/pytorch/pytorch/pull/54484 Re-land of https://github.com/pytorch/pytorch/pull/53295. (With fixed unit tests.) This reverts commit 0dc5abfaa9cac9266791788839d896b14600d123. Test Plan: Imported from OSS Reviewed By: nikithamalgifb Differential Revision: D27255201 Pulled By: robieta fbshipit-source-id: 4e9fed7522631d66c5cd7e27ace9b5ffc3a0bbfc