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Merge pull request #16142 from cpuguy83/stats_pass_container

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Don't lookup container 4 times for stats
This commit is contained in:
Jess Frazelle 2015-09-08 11:19:33 -07:00
commit 451f4d0d3b
3 changed files with 8 additions and 21 deletions
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2
api/server/container.go
View file

@ -103,7 +103,7 @@ func (s *Server) getContainersStats(version version.Version, w http.ResponseWrit
Stop: closeNotifier,
}
return s.daemon.ContainerStats(vars["name"], config)
return s.daemon.ContainerStats(container, config)
}
func (s *Server) getContainersLogs(version version.Version, w http.ResponseWriter, r *http.Request, vars map[string]string) error {

12
daemon/daemon.go
View file

@ -886,20 +886,12 @@ func (daemon *Daemon) stats(c *Container) (*execdriver.ResourceStats, error) {
return daemon.execDriver.Stats(c.ID)
}
func (daemon *Daemon) subscribeToContainerStats(name string) (chan interface{}, error) {
c, err := daemon.Get(name)
if err != nil {
return nil, err
}
func (daemon *Daemon) subscribeToContainerStats(c *Container) (chan interface{}, error) {
ch := daemon.statsCollector.collect(c)
return ch, nil
}
func (daemon *Daemon) unsubscribeToContainerStats(name string, ch chan interface{}) error {
c, err := daemon.Get(name)
if err != nil {
return err
}
func (daemon *Daemon) unsubscribeToContainerStats(c *Container, ch chan interface{}) error {
daemon.statsCollector.unsubscribe(c, ch)
return nil
}

15
daemon/stats.go
View file

@ -20,8 +20,8 @@ type ContainerStatsConfig struct {
// ContainerStats writes information about the container to the stream
// given in the config object.
func (daemon *Daemon) ContainerStats(name string, config *ContainerStatsConfig) error {
updates, err := daemon.subscribeToContainerStats(name)
func (daemon *Daemon) ContainerStats(container *Container, config *ContainerStatsConfig) error {
updates, err := daemon.subscribeToContainerStats(container)
if err != nil {
return err
}
@ -34,7 +34,7 @@ func (daemon *Daemon) ContainerStats(name string, config *ContainerStatsConfig)
getStat := func(v interface{}) *types.Stats {
update := v.(*execdriver.ResourceStats)
// Retrieve the nw statistics from libnetwork and inject them in the Stats
if nwStats, err := daemon.getNetworkStats(name); err == nil {
if nwStats, err := daemon.getNetworkStats(container); err == nil {
update.Stats.Interfaces = nwStats
}
ss := convertStatsToAPITypes(update.Stats)
@ -48,7 +48,7 @@ func (daemon *Daemon) ContainerStats(name string, config *ContainerStatsConfig)
enc := json.NewEncoder(config.OutStream)
defer daemon.unsubscribeToContainerStats(name, updates)
defer daemon.unsubscribeToContainerStats(container, updates)
noStreamFirstFrame := true
for {
@ -78,14 +78,9 @@ func (daemon *Daemon) ContainerStats(name string, config *ContainerStatsConfig)
}
}
func (daemon *Daemon) getNetworkStats(name string) ([]*libcontainer.NetworkInterface, error) {
func (daemon *Daemon) getNetworkStats(c *Container) ([]*libcontainer.NetworkInterface, error) {
var list []*libcontainer.NetworkInterface
c, err := daemon.Get(name)
if err != nil {
return list, err
}
sb, err := daemon.netController.SandboxByID(c.NetworkSettings.SandboxID)
if err != nil {
return list, err