+++ /dev/null
-/*
- * Copyright (C) 2008, Google Inc.
- * Copyright (C) 2007-2008, Robin Rosenberg <robin.rosenberg@dewire.com>
- * Copyright (C) 2007, Shawn O. Pearce <spearce@spearce.org>
- * and other copyright owners as documented in the project's IP log.
- *
- * This program and the accompanying materials are made available
- * under the terms of the Eclipse Distribution License v1.0 which
- * accompanies this distribution, is reproduced below, and is
- * available at http://www.eclipse.org/org/documents/edl-v10.php
- *
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or
- * without modification, are permitted provided that the following
- * conditions are met:
- *
- * - Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- *
- * - Redistributions in binary form must reproduce the above
- * copyright notice, this list of conditions and the following
- * disclaimer in the documentation and/or other materials provided
- * with the distribution.
- *
- * - Neither the name of the Eclipse Foundation, Inc. nor the
- * names of its contributors may be used to endorse or promote
- * products derived from this software without specific prior
- * written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
- * CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES,
- * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
- * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
- * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
- * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
- * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
- * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
- * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
- * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
- * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
- * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
- * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- */
-
-package org.eclipse.jgit.lib;
-
-import java.io.BufferedReader;
-import java.io.File;
-import java.io.FileReader;
-import java.io.IOException;
-import java.io.InputStream;
-
-import junit.framework.TestCase;
-
-/**
- * Base class for performance unit test.
- */
-public abstract class SpeedTestBase extends TestCase {
-
- /**
- * The time used by native git as this is our reference.
- */
- protected long nativeTime;
-
- /**
- * Reference to the location of the Linux kernel repo.
- */
- protected String kernelrepo;
-
- /**
- * Prepare test by running a test against the Linux kernel repo first.
- *
- * @param refcmd
- * git command to execute
- *
- * @throws Exception
- */
- protected void prepare(String[] refcmd) throws Exception {
- try {
- BufferedReader bufferedReader = new BufferedReader(new FileReader("kernel.ref"));
- try {
- kernelrepo = bufferedReader.readLine();
- } finally {
- bufferedReader.close();
- }
- timeNativeGit(kernelrepo, refcmd);
- nativeTime = timeNativeGit(kernelrepo, refcmd);
- } catch (Exception e) {
- System.out.println("Create a file named kernel.ref and put the path to the Linux kernels repository there");
- throw e;
- }
- }
-
- private static long timeNativeGit(String kernelrepo, String[] refcmd) throws IOException,
- InterruptedException, Exception {
- long start = System.currentTimeMillis();
- Process p = Runtime.getRuntime().exec(refcmd, null, new File(kernelrepo,".."));
- InputStream inputStream = p.getInputStream();
- InputStream errorStream = p.getErrorStream();
- byte[] buf=new byte[1024*1024];
- for (;;)
- if (inputStream.read(buf) < 0)
- break;
- if (p.waitFor()!=0) {
- int c;
- while ((c=errorStream.read())!=-1)
- System.err.print((char)c);
- throw new Exception("git log failed");
- }
- inputStream.close();
- errorStream.close();
- long stop = System.currentTimeMillis();
- return stop - start;
- }
-}
+++ /dev/null
-/*
- * Copyright (C) 2007-2008, Robin Rosenberg <robin.rosenberg@dewire.com>
- * Copyright (C) 2007, Shawn O. Pearce <spearce@spearce.org>
- * and other copyright owners as documented in the project's IP log.
- *
- * This program and the accompanying materials are made available
- * under the terms of the Eclipse Distribution License v1.0 which
- * accompanies this distribution, is reproduced below, and is
- * available at http://www.eclipse.org/org/documents/edl-v10.php
- *
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or
- * without modification, are permitted provided that the following
- * conditions are met:
- *
- * - Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- *
- * - Redistributions in binary form must reproduce the above
- * copyright notice, this list of conditions and the following
- * disclaimer in the documentation and/or other materials provided
- * with the distribution.
- *
- * - Neither the name of the Eclipse Foundation, Inc. nor the
- * names of its contributors may be used to endorse or promote
- * products derived from this software without specific prior
- * written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
- * CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES,
- * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
- * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
- * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
- * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
- * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
- * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
- * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
- * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
- * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
- * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
- * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- */
-
-package org.eclipse.jgit.lib;
-
-import java.io.File;
-import java.io.IOException;
-
-import junit.textui.TestRunner;
-
-public class T0005_ShallowSpeedTest extends SpeedTestBase {
-
- protected void setUp() throws Exception {
- prepare(new String[] { "git", "rev-list", "365bbe0d0caaf2ba74d56556827babf0bc66965d" });
- }
-
- public void testShallowHistoryScan() throws IOException {
- long start = System.currentTimeMillis();
- Repository db = new Repository(new File(kernelrepo));
- Commit commit = db.mapCommit("365bbe0d0caaf2ba74d56556827babf0bc66965d");
- int n = 1;
- for (;;) {
- ObjectId[] parents = commit.getParentIds();
- if (parents.length == 0)
- break;
- ObjectId parentId = parents[0];
- commit = db.mapCommit(parentId);
- commit.getCommitId().name();
- ++n;
- }
- assertEquals(12275, n);
- long stop = System.currentTimeMillis();
- long time = stop - start;
- System.out.println("native="+nativeTime);
- System.out.println("jgit="+time);
- // ~0.750s (hot cache), ok
- /*
-native=1795
-jgit=722
- */
- // native git seems to run SLOWER than jgit here, at roughly half the speed
- // creating the git process is not the issue here, btw.
- long factor10 = (nativeTime*150/time+50)/100;
- assertEquals(3, factor10);
- }
-
- public static void main(String[] args) {
- TestRunner.run(T0005_ShallowSpeedTest.class);
- }
-}
+++ /dev/null
-/*
- * Copyright (C) 2007-2008, Robin Rosenberg <robin.rosenberg@dewire.com>
- * Copyright (C) 2007, Shawn O. Pearce <spearce@spearce.org>
- * and other copyright owners as documented in the project's IP log.
- *
- * This program and the accompanying materials are made available
- * under the terms of the Eclipse Distribution License v1.0 which
- * accompanies this distribution, is reproduced below, and is
- * available at http://www.eclipse.org/org/documents/edl-v10.php
- *
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or
- * without modification, are permitted provided that the following
- * conditions are met:
- *
- * - Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- *
- * - Redistributions in binary form must reproduce the above
- * copyright notice, this list of conditions and the following
- * disclaimer in the documentation and/or other materials provided
- * with the distribution.
- *
- * - Neither the name of the Eclipse Foundation, Inc. nor the
- * names of its contributors may be used to endorse or promote
- * products derived from this software without specific prior
- * written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
- * CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES,
- * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
- * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
- * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
- * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
- * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
- * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
- * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
- * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
- * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
- * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
- * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- */
-
-package org.eclipse.jgit.lib;
-
-import java.io.File;
-import java.io.IOException;
-
-import junit.textui.TestRunner;
-
-public class T0006_DeepSpeedTest extends SpeedTestBase {
-
- protected void setUp() throws Exception {
- prepare(new String[] { "git", "rev-list", "365bbe0d0caaf2ba74d56556827babf0bc66965d","--","net/netfilter/nf_queue.c" });
- }
-
- public void testDeepHistoryScan() throws IOException {
- long start = System.currentTimeMillis();
- Repository db = new Repository(new File(kernelrepo));
- Commit commit = db.mapCommit("365bbe0d0caaf2ba74d56556827babf0bc66965d");
- int n = 1;
- for (;;) {
- ObjectId[] parents = commit.getParentIds();
- if (parents.length == 0)
- break;
- ObjectId parentId = parents[0];
- commit = db.mapCommit(parentId);
- TreeEntry m = commit.getTree().findBlobMember("net/netfilter/nf_queue.c");
- if (m != null)
- commit.getCommitId().name();
- ++n;
- }
-
- assertEquals(12275, n);
- long stop = System.currentTimeMillis();
- long time = stop - start;
- System.out.println("native="+nativeTime);
- System.out.println("jgit="+time);
- /*
- native=1355
- jgit=5449
- */
- // This is not an exact factor, but we'd expect native git to perform this
- // about 4 times quicker. If for some reason we find jgit to be faster than
- // this the cause should be found and secured.
- long factor = (time*110/nativeTime+50)/100;
- assertEquals(4, factor);
- }
-
- public static void main(String[] args) {
- TestRunner.run(T0006_DeepSpeedTest.class);
- }
-}
projects / jgit.git / commitdiff