Currently the run page shows the difference in "fields" like execution time and code size.
However it would be useful to be able to compare some of the counters from the profiles, like dynamic instruction count etc.
An improvement in a profiling counter isn't necessarily representative of an improvement though, e.g. a higher dynamic instruction count can still have a quicker execution time, so they probably shouldn't be stored in the DB or used to flag regressions. This would just be a "read only" view of some sort for further investigation.