support parsing of PR stats in run_test.py (#60026)
Summary:
Currently S3 test stats doesn't support PR stats parisng.
Changes to s3_stats_parser:
1. they are uploaded to `test_times/{sha1}/{job}` and `pr_test_times/{pr}/{sha1}/{job}` separately. Thus we need parsing logics for both
2. need to attach time for PR stats parsing for ordering since PR commits can be force-pushed
Changes to run_test.py
1. Reordering based on previous PR stats if available
2. Falling back to file change option if not enabled.
Pull Request resolved: https://github.com/pytorch/pytorch/pull/60026
Test Plan:
- CI.
- local repro: plz run:
```
CIRCLE_JOB="pytorch_linux_bionic_py3_6_clang9_noarch_test" CIRCLE_PR_NUMBER=60057 IN_CI=1 ENABLE_PR_HISTORY_REORDERING=1 python test/run_test.py
```
Reviewed By: samestep
Differential Revision: D29164754
Pulled By: walterddr
fbshipit-source-id: 206688e0fb0b78d1c9042c07243da1fbf88a924b
Author
Rong Rong (AI Infra)
