On the string output, here's a format I've used:

```sh
$ xpcli Profile MethodCalls
== Profiling lang.XPClass<MethodCalls> ==
public: 0.010 seconds for 100000 calls (10003110 / second)
private: 0.020 seconds for 100000 calls (5001257 / second)
protected: 0.010 seconds for 100000 calls (10002871 / second)
== Memory used: 2308.422 kB / peak: 2614.547 kB ==
```