Interesting. Oftentimes compaction is part of generational GC and the tenured objects are literally moved to an older space. So the compaction naturally fits in

Interesting. Oftentimes compaction is part of generational GC and the tenured objects are literally moved to an older space. So the compaction naturally fits in the big picture. But the article suggests it's still under development, which means that Ruby implements generational GC without compaction? It must have been a difficult endeavour.