b.ResetTimer()
	for i := 0; i < b.N; i++ {
		b.StartTimer()
		runtime.GC()
		runtime.GC()
		b.StopTimer()
	}
	close(teardown)
}

func BenchmarkMSpanCountAlloc(b *testing.B) {
	// Allocate one dummy mspan for the whole benchmark.
	s := runtime.AllocMSpan()
	defer runtime.FreeMSpan(s)

	// n is the number of bytes to benchmark against.
	// n must always be a multiple of 8, since gcBits is

	{8, "ENOEXEC", "exec format error"},
	{9, "EBADF", "bad file descriptor"},
	{10, "ECHILD", "no child processes"},
	{11, "EAGAIN", "resource temporarily unavailable"},
	{12, "ENOMEM", "cannot allocate memory"},
	{13, "EACCES", "permission denied"},
	{14, "EFAULT", "bad address"},
	{15, "ENOTBLK", "block device required"},
	{16, "EBUSY", "device or resource busy"},
	{17, "EEXIST", "file exists"},

	{8, "ENOEXEC", "exec format error"},
	{9, "EBADF", "bad file descriptor"},
	{10, "ECHILD", "no child processes"},
	{11, "EAGAIN", "resource temporarily unavailable"},
	{12, "ENOMEM", "cannot allocate memory"},
	{13, "EACCES", "permission denied"},
	{14, "EFAULT", "bad address"},
	{15, "ENOTBLK", "block device required"},
	{16, "EBUSY", "device or resource busy"},
	{17, "EEXIST", "file exists"},

func listIAMConfigItems(ctx context.Context, objAPI ObjectLayer, pathPrefix string) <-chan itemOrErr[string] {
	ch := make(chan itemOrErr[string])

	go func() {
		defer xioutil.SafeClose(ch)

		// Allocate new results channel to receive ObjectInfo.
		objInfoCh := make(chan itemOrErr[ObjectInfo])

		if err := objAPI.Walk(ctx, minioMetaBucket, pathPrefix, objInfoCh, WalkOptions{}); err != nil {
			select {

	{8, "ENOEXEC", "exec format error"},
	{9, "EBADF", "bad file descriptor"},
	{10, "ECHILD", "no child processes"},
	{11, "EAGAIN", "resource temporarily unavailable"},
	{12, "ENOMEM", "cannot allocate memory"},
	{13, "EACCES", "permission denied"},
	{14, "EFAULT", "bad address"},
	{15, "ENOTBLK", "block device required"},
	{16, "EBUSY", "device or resource busy"},
	{17, "EEXIST", "file exists"},

	}

	// Match the stdlib's IsPrivate logic.
	if ip.Is4() {
		// RFC 1918 allocates 10.0.0.0/8, 172.16.0.0/12, and 192.168.0.0/16 as
		// private IPv4 address subnets.
		return ip.v4(0) == 10 ||
			(ip.v4(0) == 172 && ip.v4(1)&0xf0 == 16) ||
			(ip.v4(0) == 192 && ip.v4(1) == 168)
	}

	if ip.Is6() {
		// RFC 4193 allocates fc00::/7 as the unique local unicast IPv6 address
		// subnet.
		return ip.v6(0)&0xfe == 0xfc

    params+=("--concurrent-service-syncs=${CONCURRENT_SERVICE_SYNCS}")
  fi
  if [[ "${NETWORK_PROVIDER:-}" == "kubenet" ]]; then
    params+=("--allocate-node-cidrs=true")
  elif [[ -n "${ALLOCATE_NODE_CIDRS:-}" ]]; then
    params+=("--allocate-node-cidrs=${ALLOCATE_NODE_CIDRS}")
  fi
  if [[ -n "${TERMINATED_POD_GC_THRESHOLD:-}" ]]; then
    params+=("--terminated-pod-gc-threshold=${TERMINATED_POD_GC_THRESHOLD}")

	r.SetScalar(name, r.ScalarResources[name]+quantity)
}

// SetScalar sets a resource by a scalar value of this resource.
func (r *Resource) SetScalar(name v1.ResourceName, quantity int64) {
	// Lazily allocate scalar resource map.
	if r.ScalarResources == nil {
		r.ScalarResources = map[v1.ResourceName]int64{}
	}
	r.ScalarResources[name] = quantity
}

func newUnifier(tparams []*TypeParam, targs []Type, enableInterfaceInference bool) *unifier {
	assert(len(tparams) >= len(targs))
	handles := make(map[*TypeParam]*Type, len(tparams))
	// Allocate all handles up-front: in a correct program, all type parameters
	// must be resolved and thus eventually will get a handle.
	// Also, sharing of handles caused by unified type parameters is rare and

func newUnifier(tparams []*TypeParam, targs []Type, enableInterfaceInference bool) *unifier {
	assert(len(tparams) >= len(targs))
	handles := make(map[*TypeParam]*Type, len(tparams))
	// Allocate all handles up-front: in a correct program, all type parameters
	// must be resolved and thus eventually will get a handle.
	// Also, sharing of handles caused by unified type parameters is rare and