dajac commented on code in PR #18785:
URL: https://github.com/apache/kafka/pull/18785#discussion_r1939330162


##########
tests/kafkatest/benchmarks/core/benchmark_test.py:
##########
@@ -36,47 +35,42 @@ class Benchmark(Test):
     """
     def __init__(self, test_context):
         super(Benchmark, self).__init__(test_context)
-        self.num_zk = 1
         self.num_brokers = 3
         self.topics = {
             TOPIC_REP_ONE: {'partitions': 6, 'replication-factor': 1},
             TOPIC_REP_THREE: {'partitions': 6, 'replication-factor': 3}
         }
 
-        self.zk = ZookeeperService(test_context, self.num_zk)
-
         self.msgs_large = 10000000
         self.batch_size = 8*1024
         self.buffer_memory = 64*1024*1024
         self.msg_sizes = [10, 100, 1000, 10000, 100000]
         self.target_data_size = 128*1024*1024
         self.target_data_size_gb = self.target_data_size/float(1024*1024*1024)
 
-    def setUp(self):
-        self.zk.start()
-
     def start_kafka(self, security_protocol, interbroker_security_protocol, 
version, tls_version=None):
         self.kafka = KafkaService(
             self.test_context, self.num_brokers,
-            self.zk, security_protocol=security_protocol,
+            zk=None, security_protocol=security_protocol,
             interbroker_security_protocol=interbroker_security_protocol, 
topics=self.topics,
             version=version, tls_version=tls_version)
         self.kafka.log_level = "INFO"  # We don't DEBUG logging here
         self.kafka.start()
 
-    @cluster(num_nodes=5)
-    @parametrize(acks=1, topic=TOPIC_REP_ONE)
-    @parametrize(acks=1, topic=TOPIC_REP_THREE)
-    @parametrize(acks=-1, topic=TOPIC_REP_THREE)
-    @matrix(acks=[1], topic=[TOPIC_REP_THREE], message_size=[10, 100, 1000, 
10000, 100000], compression_type=["none", "snappy"], security_protocol=['SSL'], 
tls_version=['TLSv1.2', 'TLSv1.3'])
-    @matrix(acks=[1], topic=[TOPIC_REP_THREE], message_size=[10, 100, 1000, 
10000, 100000], compression_type=["none", "snappy"], 
security_protocol=['PLAINTEXT'])
-    @cluster(num_nodes=7)
-    @parametrize(acks=1, topic=TOPIC_REP_THREE, num_producers=3)
+    @cluster(num_nodes=9)
+    @parametrize(acks=1, topic=TOPIC_REP_ONE, 
metadata_quorum=quorum.isolated_kraft)
+    @parametrize(acks=1, topic=TOPIC_REP_THREE, 
metadata_quorum=quorum.isolated_kraft)
+    @parametrize(acks=-1, topic=TOPIC_REP_THREE, 
metadata_quorum=quorum.isolated_kraft)
+    @matrix(acks=[1], topic=[TOPIC_REP_THREE], message_size=[10, 100, 1000, 
10000, 100000],
+            compression_type=["none", "snappy"], security_protocol=['SSL'], 
tls_version=['TLSv1.2', 'TLSv1.3'], metadata_quorum=quorum.all_kraft)
+    @matrix(acks=[1], topic=[TOPIC_REP_THREE], message_size=[10, 100, 1000, 
10000, 100000],
+            compression_type=["none", "snappy"], 
security_protocol=['PLAINTEXT'], metadata_quorum=quorum.all_kraft)
+    @parametrize(acks=1, topic=TOPIC_REP_THREE, num_producers=3, 
metadata_quorum=quorum.isolated_kraft)
     def test_producer_throughput(self, acks, topic, num_producers=1, 
message_size=DEFAULT_RECORD_SIZE,
                                  compression_type="none", 
security_protocol='PLAINTEXT', tls_version=None, client_version=str(DEV_BRANCH),
-                                 broker_version=str(DEV_BRANCH)):
+                                 broker_version=str(DEV_BRANCH), 
metadata_quorum=quorum.zk):

Review Comment:
   nit: It may be better to default to a kraft one. What do you think?



##########
tests/kafkatest/benchmarks/core/benchmark_test.py:
##########
@@ -36,47 +35,42 @@ class Benchmark(Test):
     """
     def __init__(self, test_context):
         super(Benchmark, self).__init__(test_context)
-        self.num_zk = 1
         self.num_brokers = 3
         self.topics = {
             TOPIC_REP_ONE: {'partitions': 6, 'replication-factor': 1},
             TOPIC_REP_THREE: {'partitions': 6, 'replication-factor': 3}
         }
 
-        self.zk = ZookeeperService(test_context, self.num_zk)
-
         self.msgs_large = 10000000
         self.batch_size = 8*1024
         self.buffer_memory = 64*1024*1024
         self.msg_sizes = [10, 100, 1000, 10000, 100000]
         self.target_data_size = 128*1024*1024
         self.target_data_size_gb = self.target_data_size/float(1024*1024*1024)
 
-    def setUp(self):
-        self.zk.start()
-
     def start_kafka(self, security_protocol, interbroker_security_protocol, 
version, tls_version=None):
         self.kafka = KafkaService(
             self.test_context, self.num_brokers,
-            self.zk, security_protocol=security_protocol,
+            zk=None, security_protocol=security_protocol,
             interbroker_security_protocol=interbroker_security_protocol, 
topics=self.topics,
             version=version, tls_version=tls_version)
         self.kafka.log_level = "INFO"  # We don't DEBUG logging here
         self.kafka.start()
 
-    @cluster(num_nodes=5)
-    @parametrize(acks=1, topic=TOPIC_REP_ONE)
-    @parametrize(acks=1, topic=TOPIC_REP_THREE)
-    @parametrize(acks=-1, topic=TOPIC_REP_THREE)
-    @matrix(acks=[1], topic=[TOPIC_REP_THREE], message_size=[10, 100, 1000, 
10000, 100000], compression_type=["none", "snappy"], security_protocol=['SSL'], 
tls_version=['TLSv1.2', 'TLSv1.3'])
-    @matrix(acks=[1], topic=[TOPIC_REP_THREE], message_size=[10, 100, 1000, 
10000, 100000], compression_type=["none", "snappy"], 
security_protocol=['PLAINTEXT'])
-    @cluster(num_nodes=7)
-    @parametrize(acks=1, topic=TOPIC_REP_THREE, num_producers=3)
+    @cluster(num_nodes=9)
+    @parametrize(acks=1, topic=TOPIC_REP_ONE, 
metadata_quorum=quorum.isolated_kraft)
+    @parametrize(acks=1, topic=TOPIC_REP_THREE, 
metadata_quorum=quorum.isolated_kraft)
+    @parametrize(acks=-1, topic=TOPIC_REP_THREE, 
metadata_quorum=quorum.isolated_kraft)
+    @matrix(acks=[1], topic=[TOPIC_REP_THREE], message_size=[10, 100, 1000, 
10000, 100000],
+            compression_type=["none", "snappy"], security_protocol=['SSL'], 
tls_version=['TLSv1.2', 'TLSv1.3'], metadata_quorum=quorum.all_kraft)
+    @matrix(acks=[1], topic=[TOPIC_REP_THREE], message_size=[10, 100, 1000, 
10000, 100000],
+            compression_type=["none", "snappy"], 
security_protocol=['PLAINTEXT'], metadata_quorum=quorum.all_kraft)
+    @parametrize(acks=1, topic=TOPIC_REP_THREE, num_producers=3, 
metadata_quorum=quorum.isolated_kraft)

Review Comment:
   What's the reason for using `quorum.isolated_kraft` for some tests and 
`quorum.all_kraft` for the others? In my opinion, we could use 
`quorum.isolated_kraft` for all.



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