Tracing is at a different level of detail. For instance you can see which user and specific query is missing caches and spending a lot of time waiting for IO. U

Tracing is at a different level of detail. For instance you can see which user and specific query is missing caches and spending a lot of time waiting for IO. Unless you inspect local variables while walking the stack I don't see how you'd get that just just profiling. But a combination would be preferable (some observability tools have started on this, e.g. the profiler will tell the tracer where add additional instrumentation).