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Avoid computing super-expensive DeepEqual on every pod update

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This commit is contained in:
Wojciech Tyczynski
2016-08-09 15:57:21 +02:00
parent 1c9e623045
commit acfd8c787f
9 changed files with 58 additions and 31 deletions
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9
pkg/controller/replication/replication_controller.go
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@@ -367,12 +367,13 @@ func (rm *ReplicationManager) addPod(obj interface{}) {
// up. If the labels of the pod have changed we need to awaken both the old
// and new controller. old and cur must be *api.Pod types.
func (rm *ReplicationManager) updatePod(old, cur interface{}) {
if api.Semantic.DeepEqual(old, cur) {
// A periodic relist will send update events for all known pods.
return
}
curPod := cur.(*api.Pod)
oldPod := old.(*api.Pod)
if curPod.ResourceVersion == oldPod.ResourceVersion {
// Periodic resync will send update events for all known pods.
// Two different versions of the same pod will always have different RVs.
return
}
glog.V(4).Infof("Pod %s updated, objectMeta %+v -> %+v.", curPod.Name, oldPod.ObjectMeta, curPod.ObjectMeta)
labelChanged := !reflect.DeepEqual(curPod.Labels, oldPod.Labels)
if curPod.DeletionTimestamp != nil {