assistTime := l.assistTimePool.Load()
	if assistTime != 0 {
		l.assistTimePool.Add(-assistTime)
	}

	// Drain the pool of idle time.
	idleTime := l.idleTimePool.Load()
	if idleTime != 0 {
		l.idleTimePool.Add(-idleTime)
	}

	if !l.test {
		// Consume time from in-flight events. Make sure we're not preemptible so allp can't change.
		//

	// Update total CPU.
	s.TotalTime = sched.totaltime + (now-sched.procresizetime)*int64(gomaxprocs)
	s.IdleTime += sched.idleTime.Load()

	// Compute userTime. We compute this indirectly as everything that's not the above.
	//
	// Since time spent in _Pgcstop is covered by gcPauseTime, and time spent in _Pidle
	// is covered by idleTime, what we're left with is time spent in _Prunning and _Psyscall,

	}
	total := gcTotal + scavTotal + stats.IdleTime + stats.UserTime
	if total != stats.TotalTime {
		t.Errorf("manually computed overall total does not match TotalTime: %d cpu-ns vs. %d cpu-ns", total, stats.TotalTime)
	}
	if total == 0 {
		t.Error("total time is zero")
	}
	if gcTotal == 0 {
		t.Error("GC total time is zero")
	}
	if stats.IdleTime == 0 {
		t.Error("idle time is zero")
	}
}

		},
		"/cpu/classes/idle:cpu-seconds": {
			deps: makeStatDepSet(cpuStatsDep),
			compute: func(in *statAggregate, out *metricValue) {
				out.kind = metricKindFloat64
				out.scalar = float64bits(nsToSec(in.cpuStats.IdleTime))
			},
		},
		"/cpu/classes/scavenge/assist:cpu-seconds": {
			deps: makeStatDepSet(cpuStatsDep),
			compute: func(in *statAggregate, out *metricValue) {
				out.kind = metricKindFloat64

	// as the sum of time a G spends in the _Grunnable state before
	// it transitions to _Grunning.
	timeToRun timeHistogram

	// idleTime is the total CPU time Ps have "spent" idle.
	//
	// Reset on each GC cycle.
	idleTime atomic.Int64

	// totalMutexWaitTime is the sum of time goroutines have spent in _Gwaiting
	// with a waitreason of the form waitReasonSync{RW,}Mutex{R,}Lock.