increase predefined_minimum_secs to reduce variation (#23734)
Summary:
Pull Request resolved: https://github.com/pytorch/pytorch/pull/23734
In the latest run on AI-PEP, there are 6 tests out of 342 which has more than 7% variation. Around 20 tests which has variations between 4% to 7%. The rest are within 4%. This diff tries to further reduce the variation to 4% for all tests.
Each test has to run predefined_minimum_secs seconds before exiting. Increasing that value makes all tests run longer. Based on the experimental results, we will see what's the right value to use.
Reviewed By: hl475
Differential Revision: D16622361
fbshipit-source-id: d4c034f64b1d64e1cffd67ffbced7d8cd4449d69
