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Remove speed tests based on mapCommit 

The mapCommit API is being deprecated because it doesn't run very
fast.  Leaving tests around to test how fast it is relative to C Git
isn't instructive.  Remove them, which should help aid the transition
away from the mapCommit API.

Change-Id: I27e1c844610d7da5b2c44b33a00602706973c9cc
Signed-off-by: Shawn O. Pearce <spearce@spearce.org>
This commit is contained in:
Shawn O. Pearce 2010-06-18 18:10:32 -07:00
parent 33ae23b8b9
commit 66e5895eb4
3 changed files with 0 additions and 301 deletions
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116
org.eclipse.jgit.test/exttst/org/eclipse/jgit/lib/SpeedTestBase.java
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@ -1,116 +0,0 @@
/*
* 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;
}
}

91
org.eclipse.jgit.test/exttst/org/eclipse/jgit/lib/T0005_ShallowSpeedTest.java
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@ -1,91 +0,0 @@
/*
* 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);
}
}

94
org.eclipse.jgit.test/exttst/org/eclipse/jgit/lib/T0006_DeepSpeedTest.java
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@ -1,94 +0,0 @@
/*
* 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);
}
}