[RhodesianHunter]

>or even Java

Just in case you may be unaware, the latest GCs for Java (Shenandoah, ZGC) are miles ahead of anything available for Go due to sheer age and manpower. Parallel and Pauseless are easily achievable in most cases.

[geodel]

> Latest GCs for Java (Shenandoah, ZGC) are miles ahead of anything available.

Beyond hyperbole, do you have any actual comparison of Go vs Java GC performance?

[morelisp]

Java's GC is better but Go's GC is also parallel and "pauseless" - iirc ZGC is 50-500usec which is comparable to Go's target 200usec.

The point is, neither is "five orders of magnitude" below 20ms. And neither needs zero CPU even if it doesn't block other threads.