Type:      counterMetric,
	}
}

func getNodeDriveWaitingIOMD() MetricDescription {
	return MetricDescription{
		Namespace: nodeMetricNamespace,
		Subsystem: driveSubsystem,
		Name:      "io_waiting",
		Help:      "Total number I/O operations waiting on drive",
		Type:      counterMetric,
	}
}

func getNodeDriveFreeBytesMD() MetricDescription {
	return MetricDescription{

	// Handle the goroutine state transition.
	from, to := st.Goroutine()
	if from == to {
		// Filter out no-op events.
		return
	}
	if from.Executing() && !to.Executing() {
		if to == trace.GoWaiting {
			// Goroutine started blocking.
			gs.block(ev.Time(), ev.Stack(), st.Reason, ctx)
		} else {
			gs.stop(ev.Time(), ev.Stack(), ctx)
		}
	}
	if !from.Executing() && to.Executing() {
		start := ev.Time()

	// Handle the goroutine state transition.
	from, to := st.Goroutine()
	if from == to {
		// Filter out no-op events.
		return
	}
	if from == trace.GoRunning && !to.Executing() {
		if to == trace.GoWaiting {
			// Goroutine started blocking.
			gs.block(ev.Time(), ev.Stack(), st.Reason, ctx)
		} else {
			gs.stop(ev.Time(), ev.Stack(), ctx)
		}
	}
	if !from.Executing() && to == trace.GoRunning {

		return traceviewer.GDead
	case trace.GoNotExist:
		return traceviewer.GDead
	case trace.GoRunnable:
		return traceviewer.GRunnable
	case trace.GoRunning:
		return traceviewer.GRunning
	case trace.GoWaiting:
		if inMarkAssist {
			return traceviewer.GWaitingGC
		}
		return traceviewer.GWaiting
	case trace.GoSyscall:
		// N.B. A goroutine in a syscall is considered "executing" (state.Executing() == true).

	// Handle the goroutine state transition.
	from, to := st.Goroutine()
	if from == to {
		// Filter out no-op events.
		return
	}
	if from.Executing() && !to.Executing() {
		if to == trace.GoWaiting {
			// Goroutine started blocking.
			gs.block(ev.Time(), ev.Stack(), st.Reason, ctx)
		} else {
			gs.stop(ev.Time(), ev.Stack(), ctx)
		}
	}
	if !from.Executing() && to.Executing() {
		start := ev.Time()

// This file implements conversion from old (Go 1.11–Go 1.21) traces to the Go
// 1.22 format.
//
// Most events have direct equivalents in 1.22, at worst requiring arguments to
// be reordered. Some events, such as GoWaiting need to look ahead for follow-up
// events to determine the correct translation. GoSyscall, which is an
// instantaneous event, gets turned into a 1 ns long pair of

	GoNotExist                    // Goroutine does not exist.
	GoRunnable                    // Goroutine is runnable but not running.
	GoRunning                     // Goroutine is running.
	GoWaiting                     // Goroutine is waiting on something to happen.
	GoSyscall                     // Goroutine is in a system call.
)

// Executing returns true if the state indicates that the goroutine is executing

G_SCANRUNNABLE = G_SCAN+G_RUNNABLE
G_SCANRUNNING = G_SCAN+G_RUNNING
G_SCANSYSCALL = G_SCAN+G_SYSCALL
G_SCANWAITING = G_SCAN+G_WAITING

sts = {
    G_IDLE: 'idle',
    G_RUNNABLE: 'runnable',
    G_RUNNING: 'running',
    G_SYSCALL: 'syscall',
    G_WAITING: 'waiting',
    G_MORIBUND_UNUSED: 'moribund',
    G_DEAD: 'dead',
    G_ENQUEUE_UNUSED: 'enqueue',
    G_COPYSTACK: 'copystack',

				}
				s.gs[g.ID] = g
			case GoRunning:
				// Record execution time as we transition out of running
				g.ExecTime += ev.Time().Sub(g.lastStartTime)
				g.lastStartTime = 0
			case GoWaiting:
				// Record block time as we transition out of waiting.
				if g.lastBlockTime != 0 {
					g.BlockTimeByReason[g.lastBlockReason] += ev.Time().Sub(g.lastBlockTime)
					g.lastBlockTime = 0
				}

	return makeComputePprofFunc(trace.GoWaiting, func(reason string) bool {
		return reason == "network"
	})
}

// computePprofBlock returns a computePprofFunc that generates blocking pprof-like profile
// (time spent blocked on synchronization primitives).
func computePprofBlock() computePprofFunc {
	return makeComputePprofFunc(trace.GoWaiting, func(reason string) bool {