sievebrain - Did you read the full issue? This is an edge case - a program running on a 40 core machine that the developers were trying to keep to a 5MB heap. And yes, the answer was "use more RAM", but by "more" they mean "40MB". Not like gigabytes or anything.

There's always going to be edge cases in any GC/compiler/etc ... you just can't account for every case. I suppose with java's infinite knobs, you might be able to... but then you have to tune the GC. In Go, there's just one knob (a slider, really, more CPU vs. more RAM), and 98% of the time you'll never need to touch it. I had honestly forgotten it exists, and I work on a large Go project daily at work.