summaryrefslogtreecommitdiff
path: root/trunk/qpid/java/tools/src/main/java/org/apache/qpid/tools/PerfConsumer.java
diff options
context:
space:
mode:
Diffstat (limited to 'trunk/qpid/java/tools/src/main/java/org/apache/qpid/tools/PerfConsumer.java')
-rw-r--r--trunk/qpid/java/tools/src/main/java/org/apache/qpid/tools/PerfConsumer.java267
1 files changed, 0 insertions, 267 deletions
diff --git a/trunk/qpid/java/tools/src/main/java/org/apache/qpid/tools/PerfConsumer.java b/trunk/qpid/java/tools/src/main/java/org/apache/qpid/tools/PerfConsumer.java
deleted file mode 100644
index 0ef0455a64..0000000000
--- a/trunk/qpid/java/tools/src/main/java/org/apache/qpid/tools/PerfConsumer.java
+++ /dev/null
@@ -1,267 +0,0 @@
-/*
- *
- * 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.qpid.tools;
-
-import javax.jms.Destination;
-import javax.jms.Message;
-import javax.jms.MessageConsumer;
-import javax.jms.MessageListener;
-import javax.jms.MessageProducer;
-import javax.jms.TextMessage;
-
-import org.apache.qpid.thread.Threading;
-
-/**
- * PerfConsumer will receive x no of messages in warmup mode.
- * Once it receives the Start message it will then signal the PerfProducer.
- * It will start recording stats from the first message it receives after
- * the warmup mode is done.
- *
- * The following calculations are done.
- * The important numbers to look at is
- * a) Avg Latency
- * b) System throughput.
- *
- * Latency.
- * =========
- * Currently this test is written with the assumption that either
- * a) The Perf Producer and Consumer are on the same machine
- * b) They are on separate machines that have their time synced via a Time Server
- *
- * In order to calculate latency the producer inserts a timestamp
- * hen the message is sent. The consumer will note the current time the message is
- * received and will calculate the latency as follows
- * latency = rcvdTime - msg.getJMSTimestamp()
- *
- * Through out the test it will keep track of the max and min latency to show the
- * variance in latencies.
- *
- * Avg latency is measured by adding all latencies and dividing by the total msgs.
- * You can also compute this by (rcvdTime - testStartTime)/rcvdMsgCount
- *
- * Throughput
- * ===========
- * System throughput is calculated as follows
- * rcvdMsgCount/(rcvdTime - testStartTime)
- *
- * Consumer rate is calculated as
- * rcvdMsgCount/(rcvdTime - startTime)
- *
- * Note that the testStartTime referes to when the producer sent the first message
- * and startTime is when the consumer first received a message.
- *
- * rcvdTime keeps track of when the last message is received.
- *
- * All throughput rates are given as msg/sec so the rates are multiplied by 1000.
- *
- */
-
-public class PerfConsumer extends PerfBase implements MessageListener
-{
- MessageConsumer consumer;
- long maxLatency = 0;
- long minLatency = Long.MAX_VALUE;
- long totalLatency = 0; // to calculate avg latency.
- int rcvdMsgCount = 0;
- long testStartTime = 0; // to measure system throughput
- long startTime = 0; // to measure consumer throughput
- long rcvdTime = 0;
- boolean transacted = false;
- int transSize = 0;
-
- final Object lock = new Object();
-
- public PerfConsumer()
- {
- super();
- }
-
- public void setUp() throws Exception
- {
- super.setUp();
- consumer = session.createConsumer(dest);
-
- // Storing the following two for efficiency
- transacted = params.isTransacted();
- transSize = params.getTransactionSize();
- }
-
- public void warmup()throws Exception
- {
- System.out.println("Warming up......");
-
- boolean start = false;
- while (!start)
- {
- Message msg = consumer.receive();
- if (msg instanceof TextMessage)
- {
- if (((TextMessage)msg).getText().equals("End"))
- {
- start = true;
- MessageProducer temp = session.createProducer(msg.getJMSReplyTo());
- temp.send(session.createMessage());
- if (params.isTransacted())
- {
- session.commit();
- }
- temp.close();
- }
- }
- }
- }
-
- public void startTest() throws Exception
- {
- System.out.println("Starting test......");
- consumer.setMessageListener(this);
- }
-
- public void printResults() throws Exception
- {
- synchronized (lock)
- {
- lock.wait();
- }
-
- double avgLatency = (double)totalLatency/(double)rcvdMsgCount;
- double throughput = ((double)rcvdMsgCount/(double)(rcvdTime - testStartTime))*1000;
- double consRate = ((double)rcvdMsgCount/(double)(rcvdTime - startTime))*1000;
- System.out.println(new StringBuilder("Total Msgs Received : ").append(rcvdMsgCount).toString());
- System.out.println(new StringBuilder("Consumer rate : ").
- append(df.format(consRate)).
- append(" msg/sec").toString());
- System.out.println(new StringBuilder("System Throughput : ").
- append(df.format(throughput)).
- append(" msg/sec").toString());
- System.out.println(new StringBuilder("Avg Latency : ").
- append(df.format(avgLatency)).
- append(" ms").toString());
- System.out.println(new StringBuilder("Min Latency : ").
- append(minLatency).
- append(" ms").toString());
- System.out.println(new StringBuilder("Max Latency : ").
- append(maxLatency).
- append(" ms").toString());
- System.out.println("Completed the test......\n");
- }
-
- public void notifyCompletion(Destination replyTo) throws Exception
- {
- MessageProducer tmp = session.createProducer(replyTo);
- Message endMsg = session.createMessage();
- tmp.send(endMsg);
- if (params.isTransacted())
- {
- session.commit();
- }
- tmp.close();
- }
-
- public void tearDown() throws Exception
- {
- consumer.close();
- session.close();
- con.close();
- }
-
- public void onMessage(Message msg)
- {
- try
- {
- if (msg instanceof TextMessage && ((TextMessage)msg).getText().equals("End"))
- {
- notifyCompletion(msg.getJMSReplyTo());
-
- synchronized (lock)
- {
- lock.notifyAll();
- }
- }
- else
- {
- rcvdTime = System.currentTimeMillis();
- rcvdMsgCount ++;
-
- if (rcvdMsgCount == 1)
- {
- startTime = rcvdTime;
- testStartTime = msg.getJMSTimestamp();
- }
-
- if (transacted && (rcvdMsgCount % transSize == 0))
- {
- session.commit();
- }
-
- long latency = rcvdTime - msg.getJMSTimestamp();
- maxLatency = Math.max(maxLatency, latency);
- minLatency = Math.min(minLatency, latency);
- totalLatency = totalLatency + latency;
- }
-
- }
- catch(Exception e)
- {
- handleError(e,"Error when receiving messages");
- }
-
- }
-
- public void test()
- {
- try
- {
- setUp();
- warmup();
- startTest();
- printResults();
- tearDown();
- }
- catch(Exception e)
- {
- handleError(e,"Error when running test");
- }
- }
-
- public static void main(String[] args)
- {
- final PerfConsumer cons = new PerfConsumer();
- Runnable r = new Runnable()
- {
- public void run()
- {
- cons.test();
- }
- };
-
- Thread t;
- try
- {
- t = Threading.getThreadFactory().createThread(r);
- }
- catch(Exception e)
- {
- throw new Error("Error creating consumer thread",e);
- }
- t.start();
- }
-} \ No newline at end of file
View Lorry Controller Status