Comment by jcelerier

For anything that requires consistent low-latency you must be carefully to never do anything that allocates in the render loop. Even today, on powerful PCs, allocating just a few bytes risks degrading your performance massively especially when your users have contention (e.g. not just the game or media app running but also a stream, a music player, a web browser, random services...) as any call that could end up calling into the OS increases the chances for your thread to be context-switched