// As a matter of fact, this benchmark still triggers some spinning in the mutex.
	m := NewDRWMutex(ds, "")
	var acc0, acc1 uint64
	b.SetParallelism(4)
	b.RunParallel(func(pb *testing.PB) {
		c := make(chan bool)
		var data [4 << 10]uint64
		for i := 0; pb.Next(); i++ {
			if i%4 == 0 {
				m.Lock(id, source)
				acc0 -= 100
				acc1 += 100
				m.Unlock(b.Context())
			} else {

func reduceCommonVersions(diskVersions [][]byte, writeQuorum int) (versions []byte) {
	diskVersionsCount := make(map[uint64]int)
	for _, versions := range diskVersions {
		if len(versions) > 0 {
			diskVersionsCount[binary.BigEndian.Uint64(versions)]++
		}
	}

	var commonVersions uint64
	maxCnt := 0
	for versions, count := range diskVersionsCount {
		if maxCnt < count {
			maxCnt = count

	debug bool
}

type sizeSummary struct {
	totalSize       int64
	versions        uint64
	deleteMarkers   uint64
	replicatedSize  int64
	replicatedCount int64
	pendingSize     int64
	failedSize      int64
	replicaSize     int64
	replicaCount    int64
	pendingCount    uint64
	failedCount     uint64
	replTargetStats map[string]replTargetSizeSummary
	tiers           map[string]tierStats
}

	lastSyncTime := atomic.LoadUint64(&globalIAMSys.LastRefreshTimeUnixNano)
	if lastSyncTime != 0 {
		m.Set(sinceLastSyncMillis, float64((uint64(time.Now().UnixNano())-lastSyncTime)/uint64(time.Millisecond)))
	}
	m.Set(syncFailures, float64(atomic.LoadUint64(&globalIAMSys.TotalRefreshFailures)))
	m.Set(syncSuccesses, float64(atomic.LoadUint64(&globalIAMSys.TotalRefreshSuccesses)))
	return nil

package bandwidth

import (
	"reflect"
	"testing"
	"time"
)

const (
	oneMiB uint64 = 1024 * 1024
)

func TestMonitor_GetReport(t *testing.T) {
	type fields struct {
		activeBuckets map[BucketOptions]*bucketMeasurement
		endTime       time.Time
		update2       uint64
		endTime2      time.Time
	}
	start := time.Now()
	m0 := newBucketMeasurement(start)
	m0.incrementBytes(0)

func (ignored S) StructValueMethodNamedRecv()

func (s *S2) unexported(x int8, y int16, z int64) {}

func Bar(x int8, y int16, z int64)                  {}
func Bar1(x int8, y int16, z int64) uint64          {}
func Bar2(x int8, y int16, z int64) (uint8, uint64) {}
func BarE() Error                                   {}

func unexported(x int8, y int16, z int64) {}

func TakesFunc(f func(dontWantName int) int)

type Codec struct {

		for i, part := range o.Parts {
			var partSize uint64
			partSize, err = sio.DecryptedSize(uint64(part.Size))
			if err != nil {
				err = errObjectTampered
				return encOff, encLength, skipLen, seqNumber, partStart, err
			}
			sizes[i] = int64(partSize)
			decObjSize += int64(partSize)
		}
	} else {
		var partSize uint64
		partSize, err = sio.DecryptedSize(uint64(o.Size))
		if err != nil {

	info = Info{
		Total: uint64(s.Frsize) * (s.Blocks - reservedBlocks),
		Free:  uint64(s.Frsize) * s.Bavail,
		Files: s.Files,
		Ffree: s.Ffree,
		//nolint:unconvert
		FSType: getFSType(int64(s.Type)),
	}

	st := syscall.Stat_t{}
	err = syscall.Stat(path, &st)
	if err != nil {
		return Info{}, err
	}
	//nolint:unconvert
	devID := uint64(st.Dev) // Needed to support multiple GOARCHs

		{"uint", uint(math.MaxUint64), "18446744073709551615"},
		{"uint8", uint8(math.MaxUint8), "255"},
		{"uint16", uint16(math.MaxUint16), "65535"},
		{"uint32", uint32(math.MaxUint32), "4294967295"},
		{"uint64", uint64(math.MaxUint64), "18446744073709551615"},
		{"string", "abc", "abc"},
		{"other", true, ""},
	}
	for _, test := range tests {
		t.Run(test.name, func(t *testing.T) {

	totalWrites           atomic.Uint64
	totalDeletes          atomic.Uint64
	totalErrsAvailability atomic.Uint64 // Captures all data availability errors such as faulty disk, timeout errors.
	totalErrsTimeout      atomic.Uint64 // Captures all timeout only errors

	// apiCalls should be placed first so alignment is guaranteed for atomic operations.
	apiCalls     [storageMetricLast]uint64