}
	avg := (x*float64(n1) + y*float64(n2)) / float64(n1+n2)
	return avg
}

// Add a new transfer
func (rx *XferStats) addSize(sz int64, t time.Duration) {
	if rx.measure == nil {
		rx.measure = newRateMeasurement(time.Now())
	}
	rx.measure.incrementBytes(uint64(sz))
	rx.Curr = rx.measure.getExpMovingAvgBytesPerSecond()
	rx.sma.addSample(rx.Curr)
	rx.Avg = rx.sma.simpleMovingAvg()
	if rx.Curr > rx.Peak {

	}
	if stat.IsDir() {
		return nil, dmTime, errFileNotFound
	}

	// Read into appropriate buffer.
	sz := stat.Size()
	if sz <= metaDataReadDefault {
		buf = metaDataPoolGet()
		buf = buf[:sz]
	} else {
		buf = make([]byte, sz)
	}

	// Read file...
	_, err = io.ReadFull(f, buf)

	return buf, stat.ModTime().UTC(), osErrToFileErr(err)
}

	// Add baseflags.
	msg.Flags.Set(c.baseFlags)
	// This cannot encode subroute.
	msg.Flags.Clear(FlagSubroute)
	if payload != nil {
		if sz := payload.Msgsize(); cap(msg.Payload) < sz {
			PutByteBuffer(msg.Payload)
			msg.Payload = GetByteBufferCap(sz)
		}
		var err error
		msg.Payload, err = payload.MarshalMsg(msg.Payload[:0])
		msg.Op = payload.Op()
		if err != nil {
			return err
		}
	}

		<-done
	}
	testCancel(func() {
		rb.Write([]byte{sz + 5: 1})
	})
	testCancel(func() {
		rb.Write(make([]byte, sz))
		rb.WriteByte(0)
	})
	testCancel(func() {
		rb.Read([]byte{10: 1})
	})
	testCancel(func() {
		rb.ReadByte()
	})
	testCancel(func() {
		rb.Write(make([]byte, sz))
		rb.Flush()
	})
}

func TestWriteAfterWriterClose(t *testing.T) {

					},
				})
				sz := roi.Size
				if err != nil {
					if roi.DeleteMarker && isErrMethodNotAllowed(ErrorRespToObjectError(err, opts.bucket, roi.Name)) {
						st.ReplicatedCount++
					} else {
						st.FailedCount++
					}
					sz = 0
				} else {
					st.ReplicatedCount++
					st.ReplicatedSize += roi.Size
				}
				traceFn(sz, err)
				select {
				case <-ctx.Done():

		Duration:  duration,
		Path:      path,
		Error:     errStr,
		Bytes:     sz,
	}
}

func (m *decomMetrics) log(d decomMetric, poolIdx int, paths ...string) func(z int64, err error) {
	startTime := time.Now()
	return func(sz int64, err error) {
		duration := time.Since(startTime)
		if globalTrace.NumSubscribers(madmin.TraceDecommission) > 0 {

				set:  true,
				Days: 1,
			},
		},
		{
			ID:     "rule-with-sz-lt",
			Status: "Enabled",
			Filter: Filter{
				set:                true,
				ObjectSizeLessThan: 100 * humanize.MiByte,
			},
			Expiration: Expiration{
				set:  true,
				Days: 1,
			},
		},
		{
			ID:     "rule-with-sz-gt",
			Status: "Enabled",
			Filter: Filter{
				set:                   true,

	add = func(path dataUsageHash) {
		e, ok := d.Cache[path.Key()]
		if !ok {
			return
		}
		if len(e.Children) == 0 {
			return
		}
		sz := d.sizeRecursive(path.Key())
		leaves = append(leaves, struct {
			objects uint64
			path    dataUsageHash
		}{objects: sz.Objects, path: path})
		for ch := range e.Children {
			add(dataUsageHash(ch))
		}
	}

	// Add path recursively.
	add(path)

func (x *xlMetaV2) AppendTo(dst []byte) ([]byte, error) {
	// Header...
	sz := len(xlHeader) + len(xlVersionCurrent) + msgp.ArrayHeaderSize + len(dst) + 3*msgp.Uint32Size
	// Existing + Inline data
	sz += len(dst) + len(x.data)
	// Versions...
	for _, ver := range x.versions {
		sz += 32 + len(ver.meta)
	}
	if cap(dst) < sz {
		buf := make([]byte, len(dst), sz)
		copy(buf, dst)
		dst = buf
	}

			return
		}
		switch msgp.UnsafeString(field) {
		case "ch":
			err = z.Children.DecodeMsg(dc)
			if err != nil {
				err = msgp.WrapError(err, "Children")
				return
			}
		case "sz":
			z.Size, err = dc.ReadInt64()
			if err != nil {
				err = msgp.WrapError(err, "Size")
				return
			}
		case "os":
			z.Objects, err = dc.ReadUint64()
			if err != nil {