Have `pyperformance run` run `pyperf system tune`

I was surprised to learn today that pyperformance run does not call pyperf system tune -- I guess I had assumed that this was included in pyperformance's responsibilities. It looks like support was added to run it for pyperformance compile but not for pyperformance run so I'm not sure what is intended.

I'd like to propose that pyperformance run and pyperformance compile have the same behavior with respect to tuning the system, with my personal preference being that they should both tune the system. What do you all think?

Confronta il comportamento esistente di pyperformance compile con pyperformance run, concentrandoti sul punto in cui ciascun comando invoca pyperf system tune. Conferma il comportamento di tuning condiviso previsto sulla base della discussione dell’issue, quindi rendi coerenti i comandi e verifica entrambi i percorsi dei comandi.