Downloads:     totalBytesRead,
		UploadTimes:   uploadTimes,
		DownloadTimes: downloadTimes,
		DownloadTTFB:  downloadTTFB,
		Error:         retError,
	}, nil
}

// To collect RX stats during "mc support perf net"
// RXSample holds the RX bytes for the duration between
// the last peer to connect and the first peer to disconnect.
// This is to improve the RX throughput accuracy.
type netPerfRX struct {

	globalNetPerfRX              netPerfRX
	globalSiteNetPerfRX          netPerfRX
	globalObjectPerfBucket       = "minio-perf-test-tmp-bucket"
	globalObjectPerfUserMetadata = "X-Amz-Meta-Minio-Object-Perf" // Clients can set this to bypass S3 API service freeze. Used by object pref tests.

	// MinIO version unix timestamp
	globalVersionUnix uint64

	// MinIO client
	globalMinioClient *minio.Client

			} else {
				// Use dperf on only formatted drives.
				ignoredPaths = append(ignoredPaths, lp)
			}
		}
		return tmpPaths
	}()

	scheme := "http"
	if globalIsTLS {
		scheme = "https"
	}

	u := &url.URL{
		Scheme: scheme,
		Host:   globalLocalNodeName,
	}

	perfs, err := perf.Run(ctx, paths...)
	return madmin.DriveSpeedTestResult{

}

// OpenFile captures time taken to call os.OpenFile
func OpenFile(name string, flag int, perm os.FileMode) (f *os.File, err error) {
	switch flag & writeMode {
	case writeMode:
		defer updateOSMetrics(osMetricOpenFileW, name)(err)
	default:
		defer updateOSMetrics(osMetricOpenFileR, name)(err)
	}
	return os.OpenFile(name, flag, perm)
}

// Access captures time taken to call syscall.Access()

)

func (er erasureObjects) getOnlineDisks() (newDisks []StorageAPI) {
	disks := er.getDisks()
	var wg sync.WaitGroup
	var mu sync.Mutex
	r := rand.New(rand.NewSource(time.Now().UnixNano()))
	for _, i := range r.Perm(len(disks)) {
		i := i
		wg.Add(1)
		go func() {
			defer wg.Done()
			if disks[i] == nil {
				return
			}
			di, err := disks[i].DiskInfo(context.Background(), DiskInfoOptions{})

// ODirectPlatform indicates if the platform supports O_DIRECT
const ODirectPlatform = true

// OpenFileDirectIO - bypass kernel cache.
func OpenFileDirectIO(filePath string, flag int, perm os.FileMode) (*os.File, error) {
	return directio.OpenFile(filePath, flag, perm)
}

// DisableDirectIO - disables directio mode.
func DisableDirectIO(f *os.File) error {
	fd := f.Fd()
	flag, err := unix.FcntlInt(fd, unix.F_GETFL, 0)
	if err != nil {

package cmd

import (
	"context"
)

const (
	memTotal     = "total"
	memUsed      = "used"
	memFree      = "free"
	memBuffers   = "buffers"
	memCache     = "cache"
	memUsedPerc  = "used_perc"
	memShared    = "shared"
	memAvailable = "available"
)

var (
	memTotalMD     = NewGaugeMD(memTotal, "Total memory on the node")
	memUsedMD      = NewGaugeMD(memUsed, "Used memory on the node")

				// proxy to replication target if active-active replication is in place.
				reader, proxy, perr = proxyGetToReplicationTarget(ctx, bucket, object, rs, r.Header, opts, proxytgts)
				if perr != nil {
					globalReplicationStats.incProxy(bucket, getObjectAPI, true)
					proxyGetErr := ErrorRespToObjectError(perr, bucket, object)

		t.Fatalf("%s: <ERROR> %s", instanceType, err)
	}
	uploadID := res.UploadID

	parts := make(map[int]string)
	metadata := make(map[string]string)
	for i := 1; i <= 10; i++ {
		randomPerm := rand.Perm(10)
		randomString := ""
		for _, num := range randomPerm {
			randomString += strconv.Itoa(num)
		}

		expectedETaghex := getMD5Hash([]byte(randomString))

		metadata["md5"] = expectedETaghex

	for i := 1; i < len(s); i++ {
		if !reflect.DeepEqual(s[i], s[0]) {
			return errSRIAMConfigMismatch(peers[0].Name, peers[i].Name, s[0], s[i])
		}
	}

	return nil
}

// Netperf for site-replication net perf
func (c *SiteReplicationSys) Netperf(ctx context.Context, duration time.Duration) (results madmin.SiteNetPerfResult, err error) {
	infos, err := globalSiteReplicationSys.GetClusterInfo(ctx)
	if err != nil {