Benchmarks or GTFO. Tracing JITs are hard to implement, use up a lot of memory, and cannot efficiently implement many kinds of control flow[1]. AFAIK TraceMonke

Benchmarks or GTFO. Tracing JITs are hard to implement, use up a lot of memory, and cannot efficiently implement many kinds of control flow[1]. AFAIK TraceMonkey was the only JavaScript tracing JIT and it was not that great.[2] [1] https://news.ycombinator.com/item?id=13774326 https://news.ycombinator.com/item?id=13774326 [2] https://en.wikipedia.org/wiki/SpiderMonkey https://en.wikipedia.org/wiki/SpiderMonkey