There's no need to spill internal processes and configurations. The fellow said he had a synthetic repo that he used to benchmark various operations. Surely whatever generated that test repo can scale it up or down to whatever size they like, so you can benchmark at various points and collect the data that would tell us if there is some horrible non-linear scaling going on under the covers.
Right now it sounds like he's just trying to see what the possible solutions for his issues are. If he can provide additional benchmarks, etc., great. But he's under no obligation to provide any more than he has. Once there's a solution, then maybe.
Of course he's not under any obligation to provide any more info than he has. But given that he already has the test harness setup, and that only he has access to the hardware on which his benchmarks ran, it seems that he could easily enable more people to help him by providing additional data points.
