DecompressorRegistryBenchmark.java

/*
 * Copyright 2016, Google Inc. All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are
 * met:
 *
 *    * Redistributions of source code must retain the above copyright
 * notice, this list of conditions and the following disclaimer.
 *    * Redistributions in binary form must reproduce the above
 * copyright notice, this list of conditions and the following disclaimer
 * in the documentation and/or other materials provided with the
 * distribution.
 *
 *    * Neither the name of Google Inc. nor the names of its
 * contributors may be used to endorse or promote products derived from
 * this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */

package io.grpc;

import io.grpc.internal.GrpcUtil;
import io.grpc.internal.TransportFrameUtil;
import java.io.IOException;
import java.io.InputStream;
import java.util.UUID;
import java.util.concurrent.TimeUnit;
import org.openjdk.jmh.annotations.Benchmark;
import org.openjdk.jmh.annotations.BenchmarkMode;
import org.openjdk.jmh.annotations.Mode;
import org.openjdk.jmh.annotations.OutputTimeUnit;
import org.openjdk.jmh.annotations.Param;
import org.openjdk.jmh.annotations.Scope;
import org.openjdk.jmh.annotations.Setup;
import org.openjdk.jmh.annotations.State;

/**
 * Decomressor Registry encoding benchmark.
 */
@State(Scope.Benchmark)
public class DecompressorRegistryBenchmark {

  @Param({"0", "1", "2"})
  public int extraEncodings;

  private DecompressorRegistry reg = DecompressorRegistry.getDefaultInstance();

  @Setup
  public void setUp() throws Exception {
    reg = DecompressorRegistry.getDefaultInstance();
    for (int i = 0; i < extraEncodings; i++) {
      reg = reg.with(new Decompressor() {

        @Override
        public String getMessageEncoding() {
          return UUID.randomUUID().toString();

        }

        @Override
        public InputStream decompress(InputStream is) throws IOException {
          return null;

        }
      }, true);
    }
  }

  /**
   * Javadoc comment.
   */
  @Benchmark
  @BenchmarkMode(Mode.SampleTime)
  @OutputTimeUnit(TimeUnit.NANOSECONDS)
  public byte[][] marshalOld() {
    Metadata m = new Metadata();
    m.put(
        GrpcUtil.MESSAGE_ACCEPT_ENCODING_KEY,
        InternalDecompressorRegistry.getRawAdvertisedMessageEncodings(reg));
    return TransportFrameUtil.toHttp2Headers(m);
  }
}