See how much new version of python-benedict impacts us

The recent release of python-benedict has monkeypatched JSONEncoder to always use python-based encoder (instead of C-based encoder.

This monkeypatching happens during import. https://github.com/iterative/dvc/blob/a7f01b65a5cd1654b74e4aa5651063f2b118831d/dvc/utils/collections.py#L85

As we only use it during exp run --set-params, we need to see how much it affects us. Also how important is the performance for the exp run? Do we save large directories and files during exp run?

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Note: Simple benchmark shows it causes 2x-4x degradation.

[pmrowla]

May be worth revisiting https://github.com/iterative/dvc/issues/4883

[skshetry]

Discussed with @efiop to get rid of the dependency, we only use it in --set-params. We need to see what it’ll take to replace it.