| /* |
| * Copyright (C) 2020, Matthias Sohn <matthias.sohn@sap.com> and others |
| * |
| * This program and the accompanying materials are made available under the |
| * terms of the Eclipse Distribution License v. 1.0 which is available at |
| * https://www.eclipse.org/org/documents/edl-v10.php. |
| * |
| * SPDX-License-Identifier: BSD-3-Clause |
| */ |
| package org.eclipse.jgit.benchmarks; |
| |
| import java.io.IOException; |
| import java.nio.file.Files; |
| import java.nio.file.NoSuchFileException; |
| import java.nio.file.Path; |
| import java.nio.file.StandardCopyOption; |
| import java.util.concurrent.TimeUnit; |
| |
| import org.eclipse.jgit.util.FileUtils; |
| import org.openjdk.jmh.annotations.Benchmark; |
| import org.openjdk.jmh.annotations.BenchmarkMode; |
| 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.Setup; |
| import org.openjdk.jmh.annotations.State; |
| import org.openjdk.jmh.annotations.TearDown; |
| import org.openjdk.jmh.annotations.Warmup; |
| import org.openjdk.jmh.runner.Runner; |
| import org.openjdk.jmh.runner.RunnerException; |
| import org.openjdk.jmh.runner.options.Options; |
| import org.openjdk.jmh.runner.options.OptionsBuilder; |
| |
| @State(Scope.Thread) |
| public class FileMoveBenchmark { |
| int i; |
| |
| Path testDir; |
| |
| Path targetDir; |
| |
| @Setup |
| public void setupBenchmark() throws IOException { |
| testDir = Files.createTempDirectory("dir"); |
| targetDir = testDir.resolve("target"); |
| Files.createDirectory(targetDir); |
| } |
| |
| @TearDown |
| public void teardown() throws IOException { |
| FileUtils.delete(testDir.toFile(), |
| FileUtils.RECURSIVE | FileUtils.RETRY); |
| } |
| |
| @Benchmark |
| @BenchmarkMode({ Mode.AverageTime }) |
| @OutputTimeUnit(TimeUnit.MICROSECONDS) |
| @Warmup(iterations = 5, time = 1000, timeUnit = TimeUnit.MILLISECONDS) |
| @Measurement(iterations = 5, time = 5000, timeUnit = TimeUnit.MILLISECONDS) |
| public Path moveFileToExistingDir() throws IOException { |
| i++; |
| Path tmp = testDir.resolve("tmp" + i++); |
| Files.createFile(tmp); |
| Path targetDirectory = targetDir; |
| Path targetFile = targetDirectory.resolve("tmp" + i); |
| try { |
| return Files.move(tmp, targetFile, StandardCopyOption.ATOMIC_MOVE); |
| } catch (NoSuchFileException e) { |
| Files.createDirectory(targetDirectory); |
| return Files.move(tmp, targetFile, StandardCopyOption.ATOMIC_MOVE); |
| } |
| } |
| |
| @Benchmark |
| @BenchmarkMode({ Mode.AverageTime }) |
| @OutputTimeUnit(TimeUnit.MICROSECONDS) |
| @Warmup(iterations = 5, time = 1000, timeUnit = TimeUnit.MILLISECONDS) |
| @Measurement(iterations = 5, time = 5000, timeUnit = TimeUnit.MILLISECONDS) |
| public Path moveFileToExistingDirExists() throws IOException { |
| Path tmp = testDir.resolve("tmp" + i++); |
| Files.createFile(tmp); |
| Path targetDirectory = targetDir; |
| Path targetFile = targetDir.resolve("tmp" + i); |
| if (!targetDirectory.toFile().exists()) { |
| Files.createDirectory(targetDirectory); |
| } |
| return Files.move(tmp, targetFile, StandardCopyOption.ATOMIC_MOVE); |
| } |
| |
| @Benchmark |
| @BenchmarkMode({ Mode.AverageTime }) |
| @OutputTimeUnit(TimeUnit.MICROSECONDS) |
| @Warmup(iterations = 5, time = 1000, timeUnit = TimeUnit.MILLISECONDS) |
| @Measurement(iterations = 5, time = 5000, timeUnit = TimeUnit.MILLISECONDS) |
| public Path moveFileToMissingDir() throws IOException { |
| i++; |
| Path tmp = testDir.resolve("tmp" + i); |
| Files.createFile(tmp); |
| Path targetDirectory = testDir.resolve("target" + i); |
| Path targetFile = targetDirectory.resolve("tmp" + i); |
| try { |
| return Files.move(tmp, targetFile, StandardCopyOption.ATOMIC_MOVE); |
| } catch (NoSuchFileException e) { |
| Files.createDirectory(targetDirectory); |
| return Files.move(tmp, targetFile, StandardCopyOption.ATOMIC_MOVE); |
| } |
| } |
| |
| @Benchmark |
| @BenchmarkMode({ Mode.AverageTime }) |
| @OutputTimeUnit(TimeUnit.MICROSECONDS) |
| @Warmup(iterations = 5, time = 1000, timeUnit = TimeUnit.MILLISECONDS) |
| @Measurement(iterations = 5, time = 5000, timeUnit = TimeUnit.MILLISECONDS) |
| public Path moveFileToMissingDirExists() throws IOException { |
| i++; |
| Path tmp = testDir.resolve("tmp" + i); |
| Files.createFile(tmp); |
| Path targetDirectory = testDir.resolve("target" + i); |
| Path targetFile = targetDirectory.resolve("tmp" + i); |
| if (!targetDirectory.toFile().exists()) { |
| Files.createDirectory(targetDirectory); |
| } |
| return Files.move(tmp, targetFile, StandardCopyOption.ATOMIC_MOVE); |
| } |
| |
| public static void main(String[] args) throws RunnerException { |
| Options opt = new OptionsBuilder() |
| .include(FileMoveBenchmark.class |
| .getSimpleName()) |
| // .addProfiler(StackProfiler.class) |
| // .addProfiler(GCProfiler.class) |
| .forks(1).jvmArgs("-ea").build(); |
| new Runner(opt).run(); |
| } |
| } |