Fix failure(context canceled) in scheduler_perf benchmark (#114843)

* Fix failure in scheduler_perf benchmark

Signed-off-by: Kante Yin <kerthcet@gmail.com>

* Fatal when error in cleaning up nodes in scheduler perf tests

Signed-off-by: Kante Yin <kerthcet@gmail.com>

* Use derived context to better organize the codes

Signed-off-by: Kante Yin <kerthcet@gmail.com>

* Change log level to 2 in scheduler perf-test

Signed-off-by: Kante Yin <kerthcet@gmail.com>

---------

Signed-off-by: Kante Yin <kerthcet@gmail.com>

test/integration/scheduler_perf/main_test.go

@@ -17,11 +17,18 @@ limitations under the License.
 package benchmark
 
 import (
+	"flag"
 	"testing"
 
+	"k8s.io/klog/v2/ktesting"
 	"k8s.io/kubernetes/test/integration/framework"
 )
 
 func TestMain(m *testing.M) {
+	// Run with -v=2, this is the default log level in production.
+	ktesting.DefaultConfig = ktesting.NewConfig(ktesting.Verbosity(2))
+	ktesting.DefaultConfig.AddFlags(flag.CommandLine)
+	flag.Parse()
+
 	framework.EtcdMain(m.Run)
 }