runtime.MemStats.HeapIdle (field)

4 uses

	runtime (current package)
		heapdump.go#L577: 	dumpint(m.HeapIdle)
		mstats.go#L205: 	HeapIdle uint64
		mstats.go#L438: 	stats.HeapIdle = memstats.heap_sys.load() - memstats.heap_inuse

	runtime/pprof
		pprof.go#L628: 	fmt.Fprintf(w, "# HeapIdle = %d\n", s.HeapIdle)