Merge pull request #124753 from sanposhiho/automated-cherry-pick-of-#…

…124714-upstream-release-1.30

Automated cherry pick of #124714: scheduler: preallocation for NodeToStatusMap

pkg/scheduler/schedule_one.go

@@ -441,13 +441,16 @@ func (sched *Scheduler) schedulePod(ctx context.Context, fwk framework.Framework
 // filter plugins and filter extenders.
 func (sched *Scheduler) findNodesThatFitPod(ctx context.Context, fwk framework.Framework, state *framework.CycleState, pod *v1.Pod) ([]*framework.NodeInfo, framework.Diagnosis, error) {
  logger := klog.FromContext(ctx)
- diagnosis := framework.Diagnosis{
- NodeToStatusMap: make(framework.NodeToStatusMap),
- }
 
  allNodes, err := sched.nodeInfoSnapshot.NodeInfos().List()
  if err != nil {
- return nil, diagnosis, err
+ return nil, framework.Diagnosis{
+ NodeToStatusMap: make(framework.NodeToStatusMap),
+ }, err
+ }
+
+ diagnosis := framework.Diagnosis{
+ NodeToStatusMap: make(framework.NodeToStatusMap, len(allNodes)),
  }
  // Run "prefilter" plugins.
  preRes, s := fwk.RunPreFilterPlugins(ctx, state, pod)