Github user wangyum commented on a diff in the pull request:
https://github.com/apache/spark/pull/22484#discussion_r220438521
--- Diff:
sql/core/src/test/scala/org/apache/spark/sql/execution/benchmark/SqlBasedBenchmark.scala
---
@@ -0,0 +1,87 @@
+/*
+ * 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.sql.execution.benchmark
+
+import org.apache.spark.benchmark.{Benchmark, BenchmarkBase}
+import org.apache.spark.sql.{AnalysisException, SparkSession}
+import org.apache.spark.sql.internal.SQLConf
+
+/**
+ * Common base trait to run benchmark with the Dataset and DataFrame API.
+ */
+trait SqlBasedBenchmark extends BenchmarkBase {
+
+ val spark: SparkSession = getSparkSession
+
+ /** Subclass can override this function to build their own SparkSession
*/
+ def getSparkSession: SparkSession = {
+ SparkSession.builder()
+ .master("local[1]")
+ .appName(this.getClass.getCanonicalName)
+ .config(SQLConf.SHUFFLE_PARTITIONS.key, 1)
+ .config(SQLConf.AUTO_BROADCASTJOIN_THRESHOLD.key, 1)
+ .getOrCreate()
+ }
+
+ /**
+ * Sets all SQL configurations specified in `pairs`, calls `f`, and then
restores all SQL
+ * configurations.
+ */
+ protected def withSQLConf(pairs: (String, String)*)(f: => Unit): Unit = {
--- End diff --
Yes, I will do it now.
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