>> Garbage collection done in the idle tasks are hidden from critical, latency-sensitive operations. > I don't believe it. Don't believe what, exactly? That s

>> Garbage collection done in the idle tasks are hidden from critical, latency-sensitive operations. > I don't believe it. Don't believe what, exactly? That statement is true by construction. If you mean that there will be times that GC will have to run that isn't during an idle task, that seems obvious (and is covered well by the post). The question is how much of GC can take place during those idle tasks for typical browsing, whatever web app you're writing, etc. The article states (in the "Performance evaluation" section) that for some top/typical sites benchmark that 43% of desktop GC and 31% of mobile GC happen during idle tasks. That seems like a good improvement. It's not magic GC, but it's not claiming to be.