Moore's law-scale performance improvements have increasingly come from harnessing multiple cores and much of Ruby is not taking advantage of this. The GIL can l

Moore's law-scale performance improvements have increasingly come from harnessing multiple cores and much of Ruby is not taking advantage of this. The GIL can limit performance on multi-core systems. This is a serious problem worth tackling. Many on this thread defending just status-quo solutions seem to miss this point.