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https://issues.apache.org/jira/browse/ARTEMIS-3133?focusedWorklogId=560935&page=com.atlassian.jira.plugin.system.issuetabpanels:worklog-tabpanel#worklog-560935
]
ASF GitHub Bot logged work on ARTEMIS-3133:
-------------------------------------------
Author: ASF GitHub Bot
Created on: 04/Mar/21 12:23
Start Date: 04/Mar/21 12:23
Worklog Time Spent: 10m
Work Description: clebertsuconic commented on a change in pull request
#3475:
URL: https://github.com/apache/activemq-artemis/pull/3475#discussion_r587425379
##########
File path:
artemis-commons/src/main/java/org/apache/activemq/artemis/utils/ObjectPool.java
##########
@@ -0,0 +1,70 @@
+/*
+ * 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.activemq.artemis.utils;
+
+import java.util.Queue;
+import java.util.function.Consumer;
+import java.util.function.Supplier;
+
+import io.netty.util.internal.PlatformDependent;
+
+/**
+ * A simple encapsulation of Netty MpscQueue to provide a pool of objects.
+ * @param <T>
+ */
+public class ObjectPool<T> {
+
+ private final Queue<T> internalPool;
+
+ private final Consumer<T> cleaner;
+ private final Supplier<T> supplier;
+
+ public ObjectPool(int maxSize, Consumer<T> cleaner, Supplier<T> supplier) {
+ if (maxSize > 0) {
+ internalPool = PlatformDependent.newFixedMpscQueue(maxSize);
Review comment:
@franz1981 this PR is pretty much doing the same thing you did.. I'm
just encapsulating MPSC into an object.
This is just to be clearer to read.
When I asked you to review the code here was to review the API.
Now if we should pool or not it's an orthogonal discussion. The code right
now is pooling and I would like it (tried it) to be more readable on its
intention.
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Issue Time Tracking
-------------------
Worklog Id: (was: 560935)
Time Spent: 4.5h (was: 4h 20m)
> Reduce memory usage for Null an Ping packets
> --------------------------------------------
>
> Key: ARTEMIS-3133
> URL: https://issues.apache.org/jira/browse/ARTEMIS-3133
> Project: ActiveMQ Artemis
> Issue Type: Improvement
> Reporter: Francesco Nigro
> Assignee: Francesco Nigro
> Priority: Major
> Time Spent: 4.5h
> Remaining Estimate: 0h
>
> Currently NullResponseMessage and Ping report a wrong expected size (==
> 1500): it means that the allocated Netty buffers will be much bigger then
> necessary eg null is 13 bytes, while null v2 is 21.
>
> In addition, NullReponseMessage could be cached if the transport channel
> won't use any resend cache, greatly reducing the memory used under load.
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