use goroutine pool deal sc.taskUnschedulable

Signed-off-by: 张建宇 <[email protected]>

pkg/scheduler/cache/cache.go

@@ -1488,7 +1488,7 @@ func (sc *SchedulerCache) RecordJobStatusEvent(job *schedulingapi.JobInfo, updat
 	for _, status := range []schedulingapi.TaskStatus{schedulingapi.Allocated, schedulingapi.Pending, schedulingapi.Pipelined} {
 		statusTasks := job.TaskStatusIndex[status]
 		workerNum := 16
-		taskInfos := make([]*schedulingapi.TaskInfo, 0)
+		taskInfos := make([]*schedulingapi.TaskInfo, 0, len(statusTasks))
 		for _, task := range statusTasks {
 			taskInfos = append(taskInfos, task)
 		}