Java tutorial
/* * Copyright 1999-2011 Alibaba Group Holding Ltd. * * Licensed 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 com.alibaba.druid.benckmark.pool; import java.lang.management.ManagementFactory; import java.lang.management.ThreadInfo; import java.sql.Connection; import java.text.NumberFormat; import java.util.concurrent.CountDownLatch; import java.util.concurrent.atomic.AtomicLong; import javax.sql.DataSource; import junit.framework.TestCase; import org.apache.commons.dbcp.BasicDataSource; import com.alibaba.druid.TestUtil; import com.alibaba.druid.pool.DruidDataSource; import com.jolbox.bonecp.BoneCPDataSource; /** * TestOnBo Case1.java??TODO ?? * * @author admin 2011-5-28 ?03:47:40 */ public class Case2 extends TestCase { private String jdbcUrl; private String user; private String password; private String driverClass; private int initialSize = 10; private int minPoolSize = 10; private int maxPoolSize = 50; private int maxActive = 50; private String validationQuery = "SELECT 1"; private int threadCount = 100; private int executeCount = 4; final int LOOP_COUNT = (1000 * 100) / executeCount; private boolean testOnBorrow = true; protected void setUp() throws Exception { jdbcUrl = "jdbc:fake:dragoon_v25masterdb"; user = "dragoon25"; password = "dragoon25"; driverClass = "com.alibaba.druid.mock.MockDriver"; } public void test_0() throws Exception { DruidDataSource dataSource = new DruidDataSource(); dataSource.setInitialSize(initialSize); dataSource.setMaxActive(maxActive); dataSource.setMinIdle(minPoolSize); dataSource.setMaxIdle(maxPoolSize); dataSource.setPoolPreparedStatements(true); dataSource.setDriverClassName(driverClass); dataSource.setUrl(jdbcUrl); dataSource.setPoolPreparedStatements(true); dataSource.setUsername(user); dataSource.setPassword(password); dataSource.setValidationQuery(validationQuery); dataSource.setTestOnBorrow(testOnBorrow); for (int i = 0; i < executeCount; ++i) { p0(dataSource, "druid", threadCount); } System.out.println(); } public void test_1() throws Exception { final BasicDataSource dataSource = new BasicDataSource(); dataSource.setInitialSize(initialSize); dataSource.setMaxActive(maxActive); dataSource.setMinIdle(minPoolSize); dataSource.setMaxIdle(maxPoolSize); dataSource.setPoolPreparedStatements(true); dataSource.setDriverClassName(driverClass); dataSource.setUrl(jdbcUrl); dataSource.setPoolPreparedStatements(true); dataSource.setUsername(user); dataSource.setPassword(password); dataSource.setValidationQuery("SELECT 1"); dataSource.setTestOnBorrow(testOnBorrow); for (int i = 0; i < executeCount; ++i) { p0(dataSource, "dbcp", threadCount); } System.out.println(); } // testOnBorrowtrueBoneCP?? public void f_test_2() throws Exception { BoneCPDataSource dataSource = new BoneCPDataSource(); // dataSource.(10); // dataSource.setMaxActive(50); dataSource.setMinConnectionsPerPartition(minPoolSize); dataSource.setMaxConnectionsPerPartition(maxPoolSize); dataSource.setDriverClass(driverClass); dataSource.setJdbcUrl(jdbcUrl); dataSource.setStatementsCacheSize(100); // dataSource.setMaxOpenPreparedStatements(100); dataSource.setUsername(user); dataSource.setPassword(password); dataSource.setConnectionTestStatement("SELECT 1"); dataSource.setPartitionCount(1); dataSource.setAcquireIncrement(5); dataSource.setIdleConnectionTestPeriod(0L); // dataSource.setDisableConnectionTracking(true); for (int i = 0; i < executeCount; ++i) { p0(dataSource, "boneCP", threadCount); } System.out.println(); } private void p0(final DataSource dataSource, String name, int threadCount) throws Exception { final CountDownLatch startLatch = new CountDownLatch(1); final CountDownLatch endLatch = new CountDownLatch(threadCount); final AtomicLong blockedStat = new AtomicLong(); final AtomicLong waitedStat = new AtomicLong(); for (int i = 0; i < threadCount; ++i) { Thread thread = new Thread() { public void run() { try { startLatch.await(); long threadId = Thread.currentThread().getId(); long startBlockedCount, startWaitedCount; { ThreadInfo threadInfo = ManagementFactory.getThreadMXBean().getThreadInfo(threadId); startBlockedCount = threadInfo.getBlockedCount(); startWaitedCount = threadInfo.getWaitedCount(); } for (int i = 0; i < LOOP_COUNT; ++i) { Connection conn = dataSource.getConnection(); conn.close(); } ThreadInfo threadInfo = ManagementFactory.getThreadMXBean().getThreadInfo(threadId); long blockedCount = threadInfo.getBlockedCount() - startBlockedCount; long waitedCount = threadInfo.getWaitedCount() - startWaitedCount; blockedStat.addAndGet(blockedCount); waitedStat.addAndGet(waitedCount); } catch (Exception ex) { ex.printStackTrace(); } endLatch.countDown(); } }; thread.start(); } long startMillis = System.currentTimeMillis(); long startYGC = TestUtil.getYoungGC(); long startFullGC = TestUtil.getFullGC(); startLatch.countDown(); endLatch.await(); long millis = System.currentTimeMillis() - startMillis; long ygc = TestUtil.getYoungGC() - startYGC; long fullGC = TestUtil.getFullGC() - startFullGC; System.out.println("thread " + threadCount + " " + name + " millis : " + NumberFormat.getInstance().format(millis) + ", YGC " + ygc + " FGC " + fullGC + " blockedCount " + blockedStat.get() + " waitedCount " + waitedStat.get()); } }