Utility of the performance script

[ntraut]

From what it is written inside, the performance script is supposed monitor the I/O speed of an application, but in fact what it does is to create a bunch of GameScore objects and then try to read them, so it is only testing the performance of the Parse server and in addition it pollutes the database.
Is this script really useful and should we keep it?
If yes we should rewrite the explanations to tell that the script is not testing an application but the Parse server, and maybe also add a clean up part.