| /* |
| * 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.apache.cassandra.db.ColumnFamilyStore; |
| import org.openjdk.jmh.annotations.*; |
| |
| @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 WriteTest extends SimpleTableWriter |
| { |
| |
| public enum EndOp |
| { |
| INMEM, TRUNCATE, FLUSH |
| } |
| |
| @Param({"INMEM", "TRUNCATE", "FLUSH"}) |
| EndOp flush = EndOp.INMEM; |
| |
| @Setup(Level.Trial) |
| public void setup() throws Throwable |
| { |
| super.commonSetup(); |
| } |
| |
| @Benchmark |
| public void writeTable() throws Throwable |
| { |
| long i; |
| for (i = 0; i <= count - BATCH; i += BATCH) |
| performWrite(i, BATCH); |
| if (i < count) |
| performWrite(i, Math.toIntExact(count - i)); |
| |
| switch (flush) |
| { |
| case FLUSH: |
| cfs.forceBlockingFlush(ColumnFamilyStore.FlushReason.USER_FORCED); |
| // if we flush we also must truncate to avoid accummulating sstables |
| case TRUNCATE: |
| execute("TRUNCATE TABLE " + table); |
| // note: we turn snapshotting and durable writes (which would have caused a flush) off for this benchmark |
| break; |
| case INMEM: |
| if (!cfs.getLiveSSTables().isEmpty()) |
| throw new AssertionError("SSTables created for INMEM test."); |
| // leave unflushed, i.e. next iteration will overwrite data |
| default: |
| } |
| } |
| |
| public Object[] writeArguments(long i) |
| { |
| return new Object[] { i, i, i }; |
| } |
| |
| void doExtraChecks() |
| { |
| if (flush == WriteTest.EndOp.INMEM && !cfs.getLiveSSTables().isEmpty()) |
| throw new AssertionError("SSTables created for INMEM test."); |
| } |
| |
| String extraInfo() |
| { |
| return " flush " + flush; |
| } |
| } |