| /* |
| * 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.instance; |
| |
| |
| import java.util.concurrent.TimeUnit; |
| |
| 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.Scope; |
| import org.openjdk.jmh.annotations.State; |
| import org.openjdk.jmh.annotations.Threads; |
| import org.openjdk.jmh.annotations.Warmup; |
| |
| @BenchmarkMode(Mode.AverageTime) |
| @OutputTimeUnit(TimeUnit.MILLISECONDS) |
| @Warmup(iterations = 5, time = 1, timeUnit = TimeUnit.SECONDS) |
| @Measurement(iterations = 10, time = 1, timeUnit = TimeUnit.SECONDS) |
| @Fork(value = 1) |
| @Threads(1) |
| @State(Scope.Benchmark) |
| public class ReadTestSmallPartitions extends ReadTest |
| { |
| String readStatement() |
| { |
| return "SELECT * from "+table+" where userid=?"; |
| } |
| |
| @Override |
| public Object[] writeArguments(long i) |
| { |
| return new Object[] { i, i, i }; |
| } |
| |
| @Benchmark |
| public Object readRandomInside() throws Throwable |
| { |
| return performRead(readStatement(), () -> new Object[] { (long) rand.nextInt(count) }); |
| } |
| |
| @Benchmark |
| public Object readRandomWOutside() throws Throwable |
| { |
| return performRead(readStatement(), () -> new Object[] { (long) rand.nextInt(count + count / 6) }); |
| } |
| |
| @Benchmark |
| public Object readFixed() throws Throwable |
| { |
| return performRead(readStatement(), () -> new Object[] { 1234567890123L % count }); |
| } |
| |
| @Benchmark |
| public Object readOutside() throws Throwable |
| { |
| return performRead(readStatement(), () -> new Object[] { count + 1234567L }); |
| } |
| } |