V8 Maglev: Missing Selective Disable Flag for Short-Lived Workloads
Compilation Tier Control Gap V8 v11.7 introduced Maglev as a mid-tier optimizing compiler between Sparkplug and TurboFan, targeting functions that are warm but not yet hot enough for full TurboFan optimization. The heuristic triggers — based on invocation counts and loop iterations — are tuned per release and differ across desktop and mobile platforms, with