| /* |
| * 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); |
| } |
| } |