I noticed that qemu-img was producing some trace files when I compiled with --enable-trace-backends=simple.
What is the point of tracing qemu-img? I thought trace events were supposed to represent execution related things, like "an instruction got executed" and so on. I also noticed that qemu-img --trace help and strings trace-* are the same, so it must be some kind of index? qemu-system-x86_64 also produces those files when I don't give it any traces. Can you turn the generation of those traces off when no events are given to -trace enable=?