Examples of AdaptiveReceiveBufferSizePredictor

com.firefly.net.buffer.AdaptiveReceiveBufferSizePredictor
org.jboss.netty.channel.AdaptiveReceiveBufferSizePredictor
The {@link ReceiveBufferSizePredictor} that automatically increases anddecreases the predicted buffer size on feed back.
It gradually increases the expected number of readable bytes if the previous read filled the allocated buffer. It gradually decreases the expected number of readable bytes if the read operation was not able to fill a certain amount of the allocated buffer two times consecutively. Otherwise, it keeps returning the previous prediction. @author The Netty Project (netty-dev@lists.jboss.org) @author Trustin Lee (tlee@redhat.com) @version $Rev: 1008 $, $Date: 2009-03-11 18:27:14 +0900 (Wed, 11 Mar 2009) $

Examples of com.firefly.net.buffer.AdaptiveReceiveBufferSizePredictor


  private static Log log = LogFactory.getInstance().getLog("firefly-system");


  @Test
  public void testAdaptive() {
    ReceiveBufferSizePredictor receiveBufferSizePredictor = new AdaptiveReceiveBufferSizePredictor();
    receiveBufferSizePredictor.previousReceiveBufferSize(960);
    receiveBufferSizePredictor.previousReceiveBufferSize(960);
    receiveBufferSizePredictor.previousReceiveBufferSize(960);
    log.debug("current buf size: " + receiveBufferSizePredictor.nextReceiveBufferSize());
    Assert.assertThat(receiveBufferSizePredictor.nextReceiveBufferSize(), is(1024));


    receiveBufferSizePredictor.previousReceiveBufferSize(1025);
    receiveBufferSizePredictor.previousReceiveBufferSize(1300);
    log.debug("current buf size: " + receiveBufferSizePredictor.nextReceiveBufferSize());
    Assert.assertThat(receiveBufferSizePredictor.nextReceiveBufferSize(), greaterThan(1024));


    receiveBufferSizePredictor.previousReceiveBufferSize(4000);
    log.debug("current buf size: " + receiveBufferSizePredictor.nextReceiveBufferSize());
    Assert.assertThat(receiveBufferSizePredictor.nextReceiveBufferSize(), greaterThan(2000));
  }

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Examples of com.firefly.net.buffer.AdaptiveReceiveBufferSizePredictor

            log.debug("fix buffer size: {}", config.getReceiveByteBufferSize());
            receiveBufferSizePredictor = new FixedReceiveBufferSizePredictor(
                    config.getReceiveByteBufferSize());
        } else {
            log.debug("adaptive buffer size");
            receiveBufferSizePredictor = new AdaptiveReceiveBufferSizePredictor();
        }
        state = OPEN;
    }

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Examples of com.firefly.net.buffer.AdaptiveReceiveBufferSizePredictor

      log.debug("fix buffer size: {}", config.getReceiveByteBufferSize());
      receiveBufferSizePredictor = new FixedReceiveBufferSizePredictor(
          config.getReceiveByteBufferSize());
    } else {
      log.debug("adaptive buffer size");
      receiveBufferSizePredictor = new AdaptiveReceiveBufferSizePredictor();
    }
    state = OPEN;
  }

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Examples of com.firefly.net.buffer.AdaptiveReceiveBufferSizePredictor


  private static Log log = LogFactory.getInstance().getLog("firefly-system");


  @Test
  public void testAdaptive() {
    ReceiveBufferSizePredictor receiveBufferSizePredictor = new AdaptiveReceiveBufferSizePredictor();
    receiveBufferSizePredictor.previousReceiveBufferSize(960);
    receiveBufferSizePredictor.previousReceiveBufferSize(960);
    receiveBufferSizePredictor.previousReceiveBufferSize(960);
    log.debug("current buf size: " + receiveBufferSizePredictor.nextReceiveBufferSize());
    Assert.assertThat(receiveBufferSizePredictor.nextReceiveBufferSize(), is(1024));


    receiveBufferSizePredictor.previousReceiveBufferSize(1025);
    receiveBufferSizePredictor.previousReceiveBufferSize(1300);
    log.debug("current buf size: " + receiveBufferSizePredictor.nextReceiveBufferSize());
    Assert.assertThat(receiveBufferSizePredictor.nextReceiveBufferSize(), greaterThan(1024));


    receiveBufferSizePredictor.previousReceiveBufferSize(4000);
    log.debug("current buf size: " + receiveBufferSizePredictor.nextReceiveBufferSize());
    Assert.assertThat(receiveBufferSizePredictor.nextReceiveBufferSize(), greaterThan(2000));
    
    receiveBufferSizePredictor.previousReceiveBufferSize(500);
    Assert.assertThat(receiveBufferSizePredictor.nextReceiveBufferSize(), greaterThan(2000));
    receiveBufferSizePredictor.previousReceiveBufferSize(1000);
    Assert.assertThat(receiveBufferSizePredictor.nextReceiveBufferSize(), lessThan(2000));
  }

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Examples of com.firefly.net.buffer.AdaptiveReceiveBufferSizePredictor

    receiveBufferSizePredictor.previousReceiveBufferSize(40000);
    Assert.assertThat(receiveBufferSizePredictor.nextReceiveBufferSize(), is(1024 * 8));
  }
  
  public static void main(String[] args) {
    ReceiveBufferSizePredictor receiveBufferSizePredictor = new AdaptiveReceiveBufferSizePredictor();
    receiveBufferSizePredictor.previousReceiveBufferSize(960);
    System.out.println(receiveBufferSizePredictor.nextReceiveBufferSize());
    receiveBufferSizePredictor.previousReceiveBufferSize(1300);
    System.out.println(receiveBufferSizePredictor.nextReceiveBufferSize());
    receiveBufferSizePredictor.previousReceiveBufferSize(4000);
    System.out.println(receiveBufferSizePredictor.nextReceiveBufferSize());
    receiveBufferSizePredictor.previousReceiveBufferSize(960);
    System.out.println(receiveBufferSizePredictor.nextReceiveBufferSize());
    receiveBufferSizePredictor.previousReceiveBufferSize(50);
    receiveBufferSizePredictor.previousReceiveBufferSize(50);
    receiveBufferSizePredictor.previousReceiveBufferSize(50);
    System.out.println(receiveBufferSizePredictor.nextReceiveBufferSize());
  }

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Examples of org.jboss.netty.channel.AdaptiveReceiveBufferSizePredictor

     * parameters, the expected buffer size starts from {@code 1024}, does not
     * go down below {@code 64}, and does not go up above {@code 65536}.
     */
    public WrappedAdaptiveReceiveBufferSizePredictor() {
      adaptiveReceiveBufferSizePredictor =
          new AdaptiveReceiveBufferSizePredictor();
    }

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Examples of org.jboss.netty.channel.AdaptiveReceiveBufferSizePredictor

     */
    public WrappedAdaptiveReceiveBufferSizePredictor(int minimum,
                                                     int initial,
                                                     int maximum) {
      adaptiveReceiveBufferSizePredictor =
          new AdaptiveReceiveBufferSizePredictor(minimum, initial, maximum);
    }

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