My app is allocating a ton of objects (>1mln per second; most objects are byte arrays of size ~80-100 and strings of the same size) and I think it might be the source of its poor performance.

The app's working set is only tens of megabytes. Profiling the app shows that GC time is negligibly small.

However, I suspect that perhaps the allocation procedure depends on which GC is being used, and some settings might make allocation faster or perhaps make a positive influence on cache hit rate, etc.

Is that so? Or is allocation performance independent on GC settings under the assumption that garbage collection itself takes little time?