I don't know. This reads more like a case of sour grapes. The discord article clearly states that some of the optimisations (like data structure improvements an

I don't know. This reads more like a case of sour grapes. The discord article clearly states that some of the optimisations (like data structure improvements and especially the larger cache bucket sizes) weren't possible at all due to the way Go's garbage collection works (scanning for the entire structure rather than few changed bits). May be that improved with the latest Go version? Even if it did, it's not possible to have the same predictable performance from any GC languages for that particular use case which seem to be suited for a non GC language. Fair points about c++ and the overall deficits in the original study that doesn't use comparable programs across languages.