[Patch v4 2/2] test: initial performance testing infrastructure

[David Bremner]

Austin Clements <amdragon at MIT.EDU> writes:
>
> The README definitely helps.  Might still be worth a comment in the
> code since it took me some thinking to realize it would do something
> reasonable when given no argument.  Perhaps above the initial
> assignment of arg,

I decided to fix the code, rather than comment it ;).  Now every code
path makes an explicit, non-empty assignment to $arg

I have pushed that slightly updated version of the patches.

d