Node-based servers will definitely benefit from this. The advantage of a two-stage compilation scheme is that the "base" compiler generates non-optimized code t

Node-based servers will definitely benefit from this. The advantage of a two-stage compilation scheme is that the "base" compiler generates non-optimized code that is self-profiling: it collects type information as it runs. That information is then used by the second-stage compiler to produce code that is more optimized than a single-stage compiler (like pre-Crankshaft V8) can produce.