rreddy-22 commented on code in PR #15717:
URL: https://github.com/apache/kafka/pull/15717#discussion_r1566211483
##########
jmh-benchmarks/src/main/java/org/apache/kafka/jmh/group_coordinator/ClientSideAssignorBenchmark.java:
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@@ -0,0 +1,198 @@
+package org.apache.kafka.jmh.group_coordinator;
+
+import org.apache.kafka.clients.consumer.ConsumerPartitionAssignor;
+import org.apache.kafka.clients.consumer.CooperativeStickyAssignor;
+import org.apache.kafka.clients.consumer.RangeAssignor;
+import org.apache.kafka.clients.consumer.internals.AbstractPartitionAssignor;
+import org.apache.kafka.common.Node;
+import org.apache.kafka.common.PartitionInfo;
+import org.apache.kafka.common.TopicPartition;
+import org.openjdk.jmh.annotations.Benchmark;
+import org.openjdk.jmh.annotations.BenchmarkMode;
+import org.openjdk.jmh.annotations.Fork;
+import org.openjdk.jmh.annotations.Level;
+import org.openjdk.jmh.annotations.Measurement;
+import org.openjdk.jmh.annotations.Mode;
+import org.openjdk.jmh.annotations.OutputTimeUnit;
+import org.openjdk.jmh.annotations.Param;
+import org.openjdk.jmh.annotations.Scope;
+import org.openjdk.jmh.annotations.Setup;
+import org.openjdk.jmh.annotations.State;
+import org.openjdk.jmh.annotations.Threads;
+import org.openjdk.jmh.annotations.Warmup;
+
+import java.util.ArrayList;
+import java.util.Arrays;
+import java.util.Collections;
+import java.util.HashMap;
+import java.util.List;
+import java.util.Map;
+import java.util.Optional;
+import java.util.concurrent.TimeUnit;
+
+import static java.lang.Integer.max;
+import static
org.apache.kafka.clients.consumer.internals.AbstractStickyAssignor.DEFAULT_GENERATION;
+
+@State(Scope.Benchmark)
+@Fork(value = 1)
+@Warmup(iterations = 5)
+@Measurement(iterations = 5)
+@BenchmarkMode(Mode.AverageTime)
+@OutputTimeUnit(TimeUnit.MILLISECONDS)
+public class ClientSideAssignorBenchmark {
+
+ @Param({"10", "50", "100"})
+ private int partitionsPerTopicCount;
+
+ @Param({"100"})
+ private int topicCount;
+
+ @Param({"500", "1000", "10000"})
+ private int memberCount;
+
+ @Param({"true", "false"})
+ private boolean isRackAware;
+
+ @Param({"true", "false"})
+ private boolean isSubscriptionUniform;
+
+ @Param({"true", "false"})
+ private boolean isRangeAssignor;
+
+ @Param({"true", "false"})
+ private boolean isReassignment;
+
+ private Map<String, ConsumerPartitionAssignor.Subscription> subscriptions
= new HashMap<>();
+
+ private final int numBrokerRacks = 3;
+
+ private final int replicationFactor = 2;
+
+ protected AbstractPartitionAssignor assignor;
Review Comment:
And we use the PartitionAssignor interface in the server side benchmark
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