Github user wangyum commented on a diff in the pull request:
https://github.com/apache/spark/pull/22855#discussion_r232203634
--- Diff:
core/src/test/scala/org/apache/spark/serializer/KryoSerializerBenchmark.scala
---
@@ -0,0 +1,90 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements. See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to You under the Apache License, Version 2.0
+ * (the "License"); you may not use this file except in compliance with
+ * the License. You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package org.apache.spark.serializer
+
+import scala.concurrent._
+import scala.concurrent.ExecutionContext.Implicits.global
+import scala.concurrent.duration._
+
+import org.apache.spark.{SparkConf, SparkContext}
+import org.apache.spark.benchmark.{Benchmark, BenchmarkBase}
+import org.apache.spark.serializer.KryoTest._
+import org.apache.spark.util.ThreadUtils
+
+/**
+ * Benchmark for KryoPool vs old "pool of 1".
+ * To run this benchmark:
+ * {{{
+ * 1. without sbt:
+ * bin/spark-submit --class <this class> --jars <spark core test jar>
+ * 2. build/sbt "core/test:runMain <this class>"
+ * 3. generate result:
+ * SPARK_GENERATE_BENCHMARK_FILES=1 build/sbt "core/test:runMain
<this class>"
+ * Results will be written to
"benchmarks/KryoSerializerBenchmark-results.txt".
+ * }}}
+ */
+object KryoSerializerBenchmark extends BenchmarkBase {
--- End diff --
cc @dongjoon-hyun for Benchmark change.
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