> or bad tuning (they set the heap needlessly large) The claim "for equivalent Java code", might be slightly exaggerated, but looking at the claim as a whole:

> or bad tuning (they set the heap needlessly large) The claim "for equivalent Java code", might be slightly exaggerated, but looking at the claim as a whole: "Rust is Tilde's Competitive Advantage", "bad tuning" is part of the point. "bad tuning" usually means "no tuning". Which means they spent the time they could have been tuning and used it to build features instead, or optimize their code instead. From that perspective I wouldn't use "bad tuning" as an argument for continuing to use Java.