totalInodes:       "Total inodes on a drive",
		cpuUser:           "CPU user time",
		cpuSystem:         "CPU system time",
		cpuIdle:           "CPU idle time",
		cpuIOWait:         "CPU ioWait time",
		cpuSteal:          "CPU steal time",
		cpuNice:           "CPU nice time",
		cpuLoad1:          "CPU load average 1min",
		cpuLoad5:          "CPU load average 5min",
		cpuLoad15:         "CPU load average 15min",

    def "the registry can be concurrently written to"() {
        when:
        // obtain localhost address ahead of time as the first call in a JVM can take multiple secs in some systems
        def localhost = Inet6Address.getLocalHost()
        def registry = registry("someDir").get(DaemonRegistry)
        5.times { idx ->
            concurrent.start {
                def context = new DefaultDaemonContext(
                    "$idx",

	// the deadline after successful Read or Write calls.
	//
	// A zero value for t means I/O operations will not time out.
	SetDeadline(t time.Time) error

	// SetReadDeadline sets the deadline for future Read calls
	// and any currently-blocked Read call.
	// A zero value for t means Read will not time out.
	SetReadDeadline(t time.Time) error

	// SetWriteDeadline sets the deadline for future Write calls

	if err := json.Unmarshal(recorder.Body.Bytes(), &data); err != nil {
		t.Fatal(err)
	}
	return data
}

func sumExecutionTime(data format.Data) (sum time.Duration) {
	for _, e := range data.Events {
		sum += time.Duration(e.Dur) * time.Microsecond
	}
	return
}

func getTestTrace(t *testing.T, testPath string) *parsedTrace {
	t.Helper()

	TotalTime time.Duration

	// Total time the goroutine spent in certain ranges; may overlap
	// with other stats.
	RangeTime map[string]time.Duration
}

func (s GoroutineExecStats) NonOverlappingStats() map[string]time.Duration {
	stats := map[string]time.Duration{
		"Execution time":         s.ExecTime,
		"Sched wait time":        s.SchedWaitTime,
		"Syscall execution time": s.SyscallTime,

// Information about the images we track.
type imageRecord struct {
	// runtime handler used to pull this image
	runtimeHandlerUsedToPullImage string
	// Time when this image was first detected.
	firstDetected time.Time

	// Time when we last saw this image being used.
	lastUsed time.Time

	// Size of the image in bytes.
	size int64

	// Pinned status of the image
	pinned bool
}

	testKillTimeout    = 100 * 365 * 24 * time.Hour // backup alarm; defaults to about a century if no timeout is set
	testWaitDelay      time.Duration                // how long to wait for output to close after a test binary exits; zero means unlimited
	testCacheExpire    time.Time                    // ignore cached test results before this time

		time measurements. Compare only with other /cpu/classes metrics.

	/cpu/classes/gc/mark/idle:cpu-seconds
		Estimated total CPU time spent performing GC tasks on spare CPU
		resources that the Go scheduler could not otherwise find a use
		for. This should be subtracted from the total GC CPU time to
		obtain a measure of compulsory GC CPU time. This metric is an

	in.pos = pos
	var partial totalUtil
	if time != util[pos].Time {
		partial = totalUtilOf(util[pos].Util, time-util[pos].Time)
	}
	return in.u.sums[pos] + partial
}

// next returns the smallest time t' > time of a change in the
// utilization function.
func (in *integrator) next(time int64) int64 {
	for _, u := range in.u.util[in.pos:] {
		if u.Time > time {
			return u.Time
		}
	}
	return 1<<63 - 1
}

	done atomic.Uint32
	m    Mutex
}

// Do calls the function f if and only if Do is being called for the
// first time for this instance of [Once]. In other words, given
//
//	var once Once
//
// if once.Do(f) is called multiple times, only the first call will invoke f,
// even if f has a different value in each invocation. A new instance of
// Once is required for each function to execute.
//