Comment by kaba0
For serial workloads it’s very very hard to scale by hardware, though. CPUs aren’t getting 2x faster as they used to.
Also, what is “messing with the JVM”? That’s like one of the most battle tested technologies out there, right next to the Linux kernel.
Don't get me wrong, I love the JVM.
The unfortunately common irrational aversion to JVM aside, there's also the fear of "using it wrong".