min heap to process x msgs/s (+ different GC)
- of 1kb: x100/s, x1000/s, x10000/s
- Enable logs + Prom
- Linear heap or not? before OOM or gc-pause oblivion
7214
- GC pauses
test different Topologies to see impact of mapValues etc. on memory
- max.block.ms (small values) impact