sec := time.Now().Unix()
	l.forwardTo(sec)
	winIdx := sec % 60
	l.Totals[winIdx].add(t)
	l.LastSec = sec
}

// Add  a new duration data
func (l *lastMinuteLatency) addAll(sec int64, a AccElem) {
	l.forwardTo(sec)
	winIdx := sec % 60
	l.Totals[winIdx].merge(a)
	l.LastSec = sec
}

// Merge all recorded latencies of last minute into one

	nl = ReplicationLastMinute{rl.LastMinute.merge(other.LastMinute)}
	return
}

func (rl *ReplicationLastMinute) addsize(n int64) {
	t := time.Now().Unix()
	rl.LastMinute.addAll(t-1, AccElem{Total: t - 1, Size: n, N: 1})
}

func (rl *ReplicationLastMinute) String() string {
	t := rl.LastMinute.getTotal()
	return fmt.Sprintf("ReplicationLastMinute sz= %d, n=%d , dur=%d", t.Size, t.N, t.Total)
}

			old := e.cached.Swap(newAcc)
			var a AccElem
			a.Size = atomic.LoadInt64(&old.Size)
			a.Total = atomic.LoadInt64(&old.Total)
			a.N = atomic.LoadInt64(&old.N)
			e.mu.Lock()
			e.lastMinuteLatency.addAll(t-1, a)
			e.mu.Unlock()
			acc = newAcc
		} else {
			// We may be able to grab the new accumulator by yielding.
			runtime.Gosched()
			acc = e.cached.Load()
		}
	}
	atomic.AddInt64(&acc.N, 1)