runtime.SetMutexProfileFraction(0)
			return buf.Bytes(), err
		}
	case madmin.ProfilerThreads:
		prof.record("threadcreate", 0, "before")
		prof.stopFn = func() ([]byte, error) {
			var buf bytes.Buffer
			err := pprof.Lookup("threadcreate").WriteTo(&buf, 0)
			return buf.Bytes(), err
		}
	case madmin.ProfilerGoroutines:
		prof.ext = "txt"
		prof.record("goroutine", 1, "before")