| /* |
| * 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.cassandra.test.microbench; |
| |
| import java.io.DataInputStream; |
| import java.io.File; |
| import java.io.FileInputStream; |
| import java.io.FileOutputStream; |
| import java.io.IOException; |
| import java.nio.ByteBuffer; |
| import java.util.concurrent.TimeUnit; |
| |
| import org.apache.cassandra.db.BufferDecoratedKey; |
| import org.apache.cassandra.dht.Murmur3Partitioner; |
| import org.apache.cassandra.io.util.BufferedDataOutputStreamPlus; |
| import org.apache.cassandra.io.util.DataOutputStreamPlus; |
| import org.apache.cassandra.io.util.FileUtils; |
| import org.apache.cassandra.utils.BloomFilter; |
| import org.apache.cassandra.utils.BloomFilterSerializer; |
| import org.apache.cassandra.utils.FilterFactory; |
| import org.apache.cassandra.utils.IFilter; |
| import org.apache.cassandra.utils.SerializationsTest; |
| import org.openjdk.jmh.annotations.Benchmark; |
| import org.openjdk.jmh.annotations.BenchmarkMode; |
| import org.openjdk.jmh.annotations.Fork; |
| import org.openjdk.jmh.annotations.Measurement; |
| 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.State; |
| import org.openjdk.jmh.annotations.Warmup; |
| |
| @BenchmarkMode(Mode.AverageTime) |
| @OutputTimeUnit(TimeUnit.MICROSECONDS) |
| @Warmup(iterations = 1, time = 1, timeUnit = TimeUnit.SECONDS) |
| @Measurement(iterations = 2, time = 4, timeUnit = TimeUnit.SECONDS) |
| @Fork(value = 2) |
| @State(Scope.Benchmark) |
| public class BloomFilterSerializerBench |
| { |
| |
| @Param({"1", "10", "100", "1024"}) |
| private long numElemsInK; |
| |
| @Param({"true", "false"}) |
| public boolean oldBfFormat; |
| |
| static final IFilter.FilterKey wrap(ByteBuffer buf) |
| { |
| return new BufferDecoratedKey(new Murmur3Partitioner.LongToken(0L), buf); |
| } |
| |
| private ByteBuffer testVal = ByteBuffer.wrap(new byte[] { 0, 1}); |
| |
| @Benchmark |
| public void serializationTest() throws IOException |
| { |
| File file = FileUtils.createTempFile("bloomFilterTest-", ".dat"); |
| try |
| { |
| BloomFilter filter = (BloomFilter) FilterFactory.getFilter(numElemsInK * 1024, 0.01d); |
| filter.add(wrap(testVal)); |
| DataOutputStreamPlus out = new BufferedDataOutputStreamPlus(new FileOutputStream(file)); |
| if (oldBfFormat) |
| SerializationsTest.serializeOldBfFormat(filter, out); |
| else |
| BloomFilterSerializer.serialize(filter, out); |
| out.close(); |
| filter.close(); |
| |
| DataInputStream in = new DataInputStream(new FileInputStream(file)); |
| BloomFilter filter2 = BloomFilterSerializer.deserialize(in, oldBfFormat); |
| FileUtils.closeQuietly(in); |
| filter2.close(); |
| } |
| finally |
| { |
| file.delete(); |
| } |
| } |
| |
| } |