@@ -37,7 +37,7 @@ func (c *Cluster) getNetworks(filters *swarmapi.ListNetworksRequest_Filters) ([]

 		return nil, err

 	}

-	var networks []apitypes.NetworkResource

+	networks := make([]apitypes.NetworkResource, 0, len(r.Networks))

 	for _, network := range r.Networks {

 		networks = append(networks, convert.BasicNetworkFromGRPC(*network))

@@ -34,7 +34,7 @@ func (c *Cluster) GetNodes(options apitypes.NodeListOptions) ([]types.Node, erro

 		return nil, err

 	}

-	nodes := []types.Node{}

+	nodes := make([]types.Node, 0, len(r.Nodes))

 	for _, node := range r.Nodes {

 		nodes = append(nodes, convert.NodeFromGRPC(*node))

@@ -48,7 +48,7 @@ func (c *Cluster) GetSecrets(options apitypes.SecretListOptions) ([]types.Secret

 		return nil, err

 	}

-	secrets := []types.Secret{}

+	secrets := make([]types.Secret, 0, len(r.Secrets))

 	for _, secret := range r.Secrets {

 		secrets = append(secrets, convert.SecretFromGRPC(secret))

@@ -67,7 +67,7 @@ func (c *Cluster) GetServices(options apitypes.ServiceListOptions) ([]types.Serv

 		return nil, err

 	}

-	services := []types.Service{}

+	services := make([]types.Service, 0, len(r.Services))

 	for _, service := range r.Services {

 		if options.Filters.Include("mode") {

@@ -60,7 +60,7 @@ func (c *Cluster) GetTasks(options apitypes.TaskListOptions) ([]types.Task, erro

 		return nil, err

 	}

-	tasks := []types.Task{}

+	tasks := make([]types.Task, 0, len(r.Tasks))

 	for _, task := range r.Tasks {

 		if task.Spec.GetContainer() != nil {