com.gemstone.gemfire.internal.cache.diskPerf.DiskRegOverflowAsyncGetInMemPerfJUnitTest Maven / Gradle / Ivy

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/*
 * Copyright (c) 2010-2015 Pivotal Software, Inc. All rights reserved.
 *
 * 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. See accompanying
 * LICENSE file.
 */
package com.gemstone.gemfire.internal.cache.diskPerf;


import java.util.*;
import com.gemstone.gemfire.*;
import com.gemstone.gemfire.internal.cache.DiskRegionHelperFactory;
import com.gemstone.gemfire.internal.cache.DiskRegionProperties;
import com.gemstone.gemfire.internal.cache.DiskRegionTestingBase;

/**
 * 
 * Disk region Perf test for Overflow only with ASync writes. 1) Performance of
 * get operation for entry in memory.
 *  
 */

public class DiskRegOverflowAsyncGetInMemPerfJUnitTest extends DiskRegionTestingBase
{

  LogWriter log = null;

  static int counter = 0;

  DiskRegionProperties diskProps = new DiskRegionProperties();

  public DiskRegOverflowAsyncGetInMemPerfJUnitTest(String name) {
    super(name);
  }

  protected void setUp() throws Exception
  {
    super.setUp();
    diskProps.setDiskDirs(dirs);
//    Properties properties = new Properties();
    diskProps.setBytesThreshold(10000l);
    diskProps.setTimeInterval(1000l);
    diskProps.setOverFlowCapacity(1000);
    region = DiskRegionHelperFactory.getAsyncOverFlowOnlyRegion(cache,
        diskProps);
    log = ds.getLogWriter();
  }

  protected void tearDown() throws Exception
  {
    super.tearDown();
    if (cache != null) {
      cache.close();
    }
    if (ds != null) {
      ds.disconnect();
    }
  }

 
  private static int ENTRY_SIZE = 1024;
  
  /* OP_COUNT can be increased/decrease as per the requirement.
   * If required to be set as higher value such as 1000000
   * one needs to set the VM heap size accordingly.
   * (For example:Default setting in build.xml is 
   *    
   */
  
  private static int OP_COUNT = 1000;

  public void testPopulatefor1Kbwrites()
  {
//    RegionAttributes ra = region.getAttributes();
//    final String key = "K";
    final byte[] value = new byte[ENTRY_SIZE];
    Arrays.fill(value, (byte)77);

    long startTime = System.currentTimeMillis();
    for (int i = 0; i < OP_COUNT; i++) {
      region.put("" + (i + 10000), value);
    }
    long endTime = System.currentTimeMillis();
    System.out.println(" done with putting");
    //Now get all the entries which are on disk.
    long startTimeGet = System.currentTimeMillis();
    for (int i = 0; i < OP_COUNT; i++) {
      region.get("" + (i + 10000));
    }
    long endTimeGet = System.currentTimeMillis();
    System.out.println(" done with getting");

    region.close(); // closes disk file which will flush all buffers
    float et = endTime - startTime;
    float etSecs = et / 1000f;
    float opPerSec = etSecs == 0 ? 0 : (OP_COUNT / (et / 1000f));
    float bytesPerSec = etSecs == 0 ? 0
        : ((OP_COUNT * ENTRY_SIZE) / (et / 1000f));

    String stats = "et=" + et + "ms writes/sec=" + opPerSec + " bytes/sec="
        + bytesPerSec;
    log.info(stats);
    System.out.println("Stats for 1 kb writes: :" + stats);
    // Perf stats for get op
    float etGet = endTimeGet - startTimeGet;
    float etSecsGet = etGet / 1000f;
    float opPerSecGet = etSecsGet == 0 ? 0 : (OP_COUNT / (etGet / 1000f));
    float bytesPerSecGet = etSecsGet == 0 ? 0
        : ((OP_COUNT * ENTRY_SIZE) / (etGet / 1000f));

    String statsGet = "et=" + etGet + "ms gets/sec=" + opPerSecGet
        + " bytes/sec=" + bytesPerSecGet;
    log.info(statsGet);
    System.out.println("Perf Stats of get which is in memory :" + statsGet);

  }

}