diff --git a/pulsar-testclient/src/main/java/org/apache/pulsar/testclient/PerfClientUtils.java b/pulsar-testclient/src/main/java/org/apache/pulsar/testclient/PerfClientUtils.java
index f9e5d5ee7e6e1..b312ceb6e3eff 100644
--- a/pulsar-testclient/src/main/java/org/apache/pulsar/testclient/PerfClientUtils.java
+++ b/pulsar-testclient/src/main/java/org/apache/pulsar/testclient/PerfClientUtils.java
@@ -30,7 +30,6 @@
 import org.apache.pulsar.client.api.ClientBuilder;
 import org.apache.pulsar.client.api.PulsarClient;
 import org.apache.pulsar.client.api.PulsarClientException;
-import org.apache.pulsar.client.api.SizeUnit;
 import org.apache.pulsar.common.util.DirectMemoryUtils;
 import org.slf4j.Logger;
 
@@ -67,7 +66,6 @@ public static ClientBuilder createClientBuilderFromArguments(PerformanceBaseArgu
             throws PulsarClientException.UnsupportedAuthenticationException {
 
         ClientBuilder clientBuilder = PulsarClient.builder()
-                .memoryLimit(0, SizeUnit.BYTES)
                 .serviceUrl(arguments.serviceURL)
                 .connectionsPerBroker(arguments.maxConnections)
                 .ioThreads(arguments.ioThreads)