Maybe I should have formulated it the other way around then.
Not really... A true concurrent high-throughput low-latency garbage collector is the stuff of nightmares. Just ask Azul Systems that sells real-time JDK for the high-performance trading applications.
Ladies and gentlemen dunning-kruger contender #2
^ Found a person who hasn't worked on high-througput GCs!
^ Found a person who hasn't worked on high-throughout compilers!