123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104105106107108109110111112113114115116117118119120121122123124125126127128129130131132133134135136 |
- /*
- * 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();
- }
- }
|