| /* |
| * 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.geode.distributed; |
| |
| import static org.apache.geode.distributed.ConfigurationProperties.LOCATORS; |
| import static org.apache.geode.distributed.ConfigurationProperties.LOG_LEVEL; |
| import static org.apache.geode.distributed.ConfigurationProperties.MCAST_PORT; |
| |
| import java.io.PrintStream; |
| import java.util.Properties; |
| |
| import org.apache.geode.internal.ExitCode; |
| |
| /** |
| * This program is used to measure the amount of time it takes to connect and re-connect to a |
| * {@link DistributedSystem}. |
| */ |
| public class DistributedSystemConnectPerf { |
| |
| private static final PrintStream out = System.out; |
| private static final PrintStream err = System.err; |
| |
| private static void usage(String s) { |
| err.println("\n** " + s + "\n"); |
| err.println("usage: java DistributedSystemConnectPerf " + "[options] port iterations"); |
| err.println(" port Port on which locator runs"); |
| err.println(" iterations Number of times to " + "connect/disconnect"); |
| err.println("Where options are:"); |
| err.println(" -wait time Time (in milliseconds) connection " + "is open"); |
| err.println(); |
| err.println("This program measures the amount of time it takes " |
| + "to connect/disconnect to a DistributedSystem"); |
| err.println(); |
| |
| ExitCode.FATAL.doSystemExit(); |
| } |
| |
| public static void main(String[] args) throws Exception { |
| int port = -1; |
| int iterations = -1; |
| int wait = 0; |
| |
| for (int i = 0; i < args.length; i++) { |
| if (args[i].equals("-wait")) { |
| if (++i >= args.length) { |
| usage("Missing wait time"); |
| |
| } else { |
| try { |
| wait = Integer.parseInt(args[i]); |
| |
| } catch (NumberFormatException ex) { |
| usage("Malformed wait time: " + args[i]); |
| } |
| } |
| |
| } else if (port == -1) { |
| try { |
| port = Integer.parseInt(args[i]); |
| |
| } catch (NumberFormatException ex) { |
| usage("Malformed port: " + args[i]); |
| } |
| |
| } else if (iterations == -1) { |
| try { |
| iterations = Integer.parseInt(args[i]); |
| |
| } catch (NumberFormatException ex) { |
| usage("Malformed iterations: " + args[i]); |
| } |
| |
| } else { |
| usage("Extraneous command line: " + args[i]); |
| } |
| } |
| |
| if (port == -1) { |
| usage("Missing port"); |
| |
| } else if (iterations == -1) { |
| usage("Missing iterations"); |
| } |
| |
| Properties props = new Properties(); |
| props.setProperty(MCAST_PORT, "0"); |
| props.setProperty(LOG_LEVEL, "info"); |
| props.setProperty(LOCATORS, "localhost[" + port + "]"); |
| |
| long totalConnect = 0; |
| long totalDisconnect = 0; |
| |
| for (int i = 0; i < iterations; i++) { |
| long start = System.currentTimeMillis(); |
| DistributedSystem system = DistributedSystem.connect(props); |
| long delta = System.currentTimeMillis() - start; |
| totalConnect += delta; |
| out.println("** Connected to DistributedSystem " + "(took " + delta + " ms)"); |
| |
| Thread.sleep(wait); |
| |
| start = System.currentTimeMillis(); |
| system.disconnect(); |
| delta = System.currentTimeMillis() - start; |
| totalDisconnect += delta; |
| out.println("** Disconnected from DistributedSystem " + "(took " + delta + " ms)"); |
| |
| } |
| |
| out.println("** Average connect time took: " + (totalConnect / iterations) + " ms"); |
| out.println("** Average disconnect time took: " + (totalDisconnect / iterations) + " ms"); |
| |
| ExitCode.NORMAL.doSystemExit(); |
| } |
| |
| } |