// should be identical to some combination of memstats. In particular:
		//
		// * memstats.heapInUse == inHeap
		// * memstats.heapReleased == released
		// * memstats.heapInUse + memstats.heapFree == committed - inStacks - inWorkBufs - inPtrScalarBits
		// * memstats.totalAlloc == totalAlloc
		// * memstats.totalFree == totalFree
		//
		// Check if that's actually true.
		//

		Uptime:   UTCNow().Unix() - globalBootTime.Unix(),
		Version:  Version,
		CommitID: CommitID,
		Network:  network,
		MemStats: madmin.MemStats{
			Alloc:      memstats.Alloc,
			TotalAlloc: memstats.TotalAlloc,
			Mallocs:    memstats.Mallocs,
			Frees:      memstats.Frees,
			HeapAlloc:  memstats.HeapAlloc,
		},
		GoMaxProcs:     runtime.GOMAXPROCS(0),
		NumCPU:         runtime.NumCPU(),

// before a benchmark starts, but it can also be used to resume timing after
// a call to [B.StopTimer].
func (b *B) StartTimer() {
	if !b.timerOn {
		runtime.ReadMemStats(&memStats)
		b.startAllocs = memStats.Mallocs
		b.startBytes = memStats.TotalAlloc
		b.start = highPrecisionTimeNow()
		b.timerOn = true
	}
}

// StopTimer stops timing a test. This can be used to pause the timer

	a.stacksSys = memstats.stacks_sys.load()
	a.buckHashSys = memstats.buckhash_sys.load()
	a.gcMiscSys = memstats.gcMiscSys.load()
	a.otherSys = memstats.other_sys.load()
	a.heapGoal = gcController.heapGoal()
	a.gcCyclesDone = uint64(memstats.numgc)
	a.gcCyclesForced = uint64(memstats.numforcedgc)

	systemstack(func() {
		lock(&mheap_.lock)
		a.mSpanSys = memstats.mspan_sys.load()

	work.tEnd = now
	atomic.Store64(&memstats.last_gc_unix, uint64(unixNow)) // must be Unix time to make sense to user
	atomic.Store64(&memstats.last_gc_nanotime, uint64(now)) // monotonic time for us
	memstats.pause_ns[memstats.numgc%uint32(len(memstats.pause_ns))] = uint64(work.pauseNS)
	memstats.pause_end[memstats.numgc%uint32(len(memstats.pause_end))] = uint64(unixNow)
	memstats.pause_total_ns += uint64(work.pauseNS)

	for a.full != nil {
		block := a.full
		a.full = block.next
		sysFree(unsafe.Pointer(block), unsafe.Sizeof(traceRegionAllocBlock{}), &memstats.other_sys)
	}
	if current := a.current.Load(); current != nil {
		sysFree(current, unsafe.Sizeof(traceRegionAllocBlock{}), &memstats.other_sys)
		a.current.Store(nil)
	}
	a.dropping.Store(false)

	return os.Args
}

func memstats() any {
	stats := new(runtime.MemStats)
	runtime.ReadMemStats(stats)
	return *stats
}

func init() {
	if godebug.New("httpmuxgo121").Value() == "1" {
		http.HandleFunc("/debug/vars", expvarHandler)
	} else {
		http.HandleFunc("GET /debug/vars", expvarHandler)
	}
	Publish("cmdline", Func(cmdline))
	Publish("memstats", Func(memstats))
}

		dumpint(uint64(uintptr(unsafe.Pointer(mp))))
		dumpint(uint64(mp.id))
		dumpint(mp.procid)
	}
}

//go:systemstack
func dumpmemstats(m *MemStats) {
	assertWorldStopped()

	// These ints should be identical to the exported
	// MemStats structure and should be ordered the same
	// way too.
	dumpint(tagMemStats)
	dumpint(m.Alloc)
	dumpint(m.TotalAlloc)
	dumpint(m.Sys)
	dumpint(m.Lookups)

	*runtime.DoubleCheckReadMemStats = true
}

func TestReadMemStats(t *testing.T) {
	base, slow := runtime.ReadMemStatsSlow()
	if base != slow {
		logDiff(t, "MemStats", reflect.ValueOf(base), reflect.ValueOf(slow))
		t.Fatal("memstats mismatch")
	}
}

func logDiff(t *testing.T, prefix string, got, want reflect.Value) {
	typ := got.Type()
	switch typ.Kind() {
	case reflect.Array, reflect.Slice:

// managed by the Go runtime).
//
// More specifically, the following expression accurately reflects
// the value the runtime attempts to maintain as the limit:
//
//	runtime.MemStats.Sys - runtime.MemStats.HeapReleased
//
// or in terms of the runtime/metrics package:
//
//	/memory/classes/total:bytes - /memory/classes/heap/released:bytes
//
// A zero limit or a limit that's lower than the amount of memory