[Pharo-users] A benchmarking package or lib ?

Hi, is there any benchmark library for Pharo ? that would provide tools to choose metrics to measure between two versions of the same code and maybe display a comparison or something (whatever the form of the report) ? I've found BenchmarkResult in Pharo but it seems very basic, at least there are no detailed examples of how it could be used. I'm specifically looking for a way to measure the speed of method calls (if that is possible) or the memory usage, but i'm also curious in general about what is measureable and try different benchmarks to see the results. So if there were a tool already doing all this work... ? Steven.