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Changed the keepChannel to buffered channel.

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Since the keepChannel is used to send data, not just for synchronizaiton,
so make it a buffered channel can avoid unnecessary goroutine yields.
This commit is contained in:
Yifan Gu
2014-07-14 13:12:44 -07:00
parent e48d85a423
commit 3a95572290
1 changed files with 3 additions and 1 deletions
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4
pkg/kubelet/kubelet.go
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@@ -44,6 +44,8 @@ import (
"gopkg.in/v1/yaml" "gopkg.in/v1/yaml"
) )
const defaultChanSize = 1024
// DockerContainerData is the structured representation of the JSON object returned by Docker inspect // DockerContainerData is the structured representation of the JSON object returned by Docker inspect
type DockerContainerData struct { type DockerContainerData struct {
state struct { state struct {
@@ -758,7 +760,7 @@ func (kl *Kubelet) SyncManifests(config []api.ContainerManifest) error {
glog.Infof("Desired: %+v", config) glog.Infof("Desired: %+v", config)
var err error var err error
dockerIdsToKeep := map[DockerID]empty{} dockerIdsToKeep := map[DockerID]empty{}
keepChannel := make(chan DockerID) keepChannel := make(chan DockerID, defaultChanSize)
waitGroup := sync.WaitGroup{} waitGroup := sync.WaitGroup{}
// Check for any containers that need starting // Check for any containers that need starting