| /* |
| * 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.calcite.benchmarks; |
| |
| import org.openjdk.jmh.infra.BenchmarkParams; |
| import org.openjdk.jmh.infra.IterationParams; |
| import org.openjdk.jmh.profile.ExternalProfiler; |
| import org.openjdk.jmh.results.BenchmarkResult; |
| import org.openjdk.jmh.results.Result; |
| |
| import java.io.File; |
| import java.util.Arrays; |
| import java.util.Collection; |
| import java.util.Collections; |
| import java.util.concurrent.TimeUnit; |
| |
| /** |
| * Captures Flight Recorder log. |
| * Note: Flight Recorder is available in OracleJDK only. |
| * Usage of Flight Recorder in production requires a LICENSE FEE, however Flight Recorder is free |
| * for use in test systems. |
| * It is assumed you would not use Calcite benchmarks for running a production system, thus it is |
| * believed to be safe. |
| */ |
| public class FlightRecorderProfiler implements ExternalProfiler { |
| @Override public Collection<String> addJVMInvokeOptions(BenchmarkParams params) { |
| return Collections.emptyList(); |
| } |
| |
| @Override public Collection<String> addJVMOptions(BenchmarkParams params) { |
| StringBuilder sb = new StringBuilder(); |
| for (String param : params.getParamsKeys()) { |
| if (sb.length() != 0) { |
| sb.append('-'); |
| } |
| sb.append(param).append('-').append(params.getParam(param)); |
| } |
| |
| long duration = |
| getDurationSeconds(params.getWarmup()) + getDurationSeconds(params.getMeasurement()); |
| return Arrays.asList( |
| "-XX:+UnlockCommercialFeatures", "-XX:+FlightRecorder", |
| "-XX:StartFlightRecording=settings=profile,duration=" + duration + "s,filename=" |
| + params.getBenchmark() + "_" + sb + ".jfr"); |
| } |
| |
| private long getDurationSeconds(IterationParams warmup) { |
| return warmup.getTime().convertTo(TimeUnit.SECONDS) * warmup.getCount(); |
| } |
| |
| @Override public void beforeTrial(BenchmarkParams benchmarkParams) { |
| |
| } |
| |
| @Override public Collection<? extends Result> afterTrial(BenchmarkResult br, long pid, |
| File stdOut, File stdErr) { |
| return Collections.emptyList(); |
| } |
| |
| @Override public boolean allowPrintOut() { |
| return true; |
| } |
| |
| @Override public boolean allowPrintErr() { |
| return true; |
| } |
| |
| @Override public String getDescription() { |
| return "Collects Java Flight Recorder profile"; |
| } |
| } |
| |
| // End FlightRecorderProfiler.java |