I think what he meant is an application that is serving a lot of requests at low latency which would be the ideal scenario for a api/cache server so not much of crap. And I'm not sure why you are comparing a 6G new gen to a 2MB new gen. Do you mean to say that a 70ms GC for a 6G heap is too low? It is fairly possible to hit those or even lower range for a heap of that size depending on the data. I have even heard of people hitting even lower GC pause though I myself haven't been able to do that personally.