const runtime.timerHeapN

7 uses

	runtime (current package)
		time.go#L1244: 		p := int(uint(i-1) / timerHeapN)
		time.go#L1305: const timerHeapN = 4
		time.go#L1327: 		p := int(uint(i-1) / timerHeapN) // parent
		time.go#L1347: 	if i*timerHeapN+1 >= n {
		time.go#L1355: 		leftChild := i*timerHeapN + 1
		time.go#L1361: 		for j, tw := range heap[leftChild:min(leftChild+timerHeapN, n)] {
		time.go#L1386: 	for i := int(uint(len(ts.heap)-1-1) / timerHeapN); i >= 0; i-- {