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/****************************************************************************
**
** Copyright (C) 2016 The Qt Company Ltd.
** Contact: https://www.qt.io/licensing/
**
** This file is part of Qbs.
**
** $QT_BEGIN_LICENSE:GPL-EXCEPT$
** Commercial License Usage
** Licensees holding valid commercial Qt licenses may use this file in
** accordance with the commercial license agreement provided with the
** Software or, alternatively, in accordance with the terms contained in
** a written agreement between you and The Qt Company. For licensing terms
** and conditions see https://www.qt.io/terms-conditions. For further
** information use the contact form at https://www.qt.io/contact-us.
**
** GNU General Public License Usage
** Alternatively, this file may be used under the terms of the GNU
** General Public License version 3 as published by the Free Software
** Foundation with exceptions as appearing in the file LICENSE.GPL3-EXCEPT
** included in the packaging of this file. Please review the following
** information to ensure the GNU General Public License requirements will
** be met: https://www.gnu.org/licenses/gpl-3.0.html.
**
** $QT_END_LICENSE$
**
****************************************************************************/
#include "benchmarker.h"
#include "commandlineparser.h"
#include "exception.h"
#include <QtCore/qcoreapplication.h>
#include <cstdlib>
#include <iostream>
using namespace qbsBenchmarker;
static bool hasRegression = false;
static int relativeChange(qint64 oldVal, qint64 newVal)
{
return newVal == 0 ? 0 : newVal * 100 / oldVal - 100;
}
static QByteArray relativeChangeString(int change)
{
QByteArray changeString = QByteArray::number(change);
changeString += " %";
if (change > 0)
changeString.prepend('+');
return changeString;
}
static void printResults(Activity activity, const BenchmarkResults &results,
int regressionThreshold)
{
std::cout << "========== Performance data for ";
switch (activity) {
case ActivityResolving:
std::cout << "Resolving";
break;
case ActivityRuleExecution:
std::cout << "Rule Execution";
break;
case ActivityNullBuild:
std::cout << "Null Build";
break;
}
std::cout << " ==========" << std::endl;
const BenchmarkResult result = results.value(activity);
const char * const indent = " ";
std::cout << indent << "Old instruction count: " << result.oldInstructionCount << std::endl;
std::cout << indent << "New instruction count: " << result.newInstructionCount << std::endl;
int change = relativeChange(result.oldInstructionCount, result.newInstructionCount);
if (change > regressionThreshold)
hasRegression = true;
std::cout << indent << "Relative change: "
<< relativeChangeString(change).constData()
<< std::endl;
std::cout << indent << "Old peak memory usage: " << result.oldPeakMemoryUsage << " Bytes"
<< std::endl;
std::cout << indent
<< "New peak memory usage: " << result.newPeakMemoryUsage << " Bytes" << std::endl;
change = relativeChange(result.oldPeakMemoryUsage, result.newPeakMemoryUsage);
if (change > regressionThreshold)
hasRegression = true;
std::cout << indent << "Relative change: "
<< relativeChangeString(change).constData()
<< std::endl;
}
static void printResults(Activities activities, const BenchmarkResults &results,
int regressionThreshold)
{
if (activities & ActivityResolving)
printResults(ActivityResolving, results, regressionThreshold);
if (activities & ActivityRuleExecution)
printResults(ActivityRuleExecution, results, regressionThreshold);
if (activities & ActivityNullBuild)
printResults(ActivityNullBuild, results, regressionThreshold);
}
int main(int argc, char *argv[])
{
QCoreApplication app(argc, argv);
CommandLineParser clParser;
try {
clParser.parse();
} catch (const Exception &e) {
std::cerr << qPrintable(e.description()) << std::endl;
return EXIT_FAILURE;
}
Benchmarker benchmarker(clParser.activies(), clParser.oldCommit(), clParser.newCommit(),
clParser.testProjectFilePath(), clParser.qbsRepoDirPath());
try {
benchmarker.benchmark();
printResults(clParser.activies(), benchmarker.results(), clParser.regressionThreshold());
if (hasRegression) {
benchmarker.keepRawData();
std::cout << "Performance regression detected. Raw benchmarking data available "
"under " << qPrintable(benchmarker.rawDataBaseDir()) << '.' << std::endl;
}
} catch (const Exception &e) {
benchmarker.keepRawData();
std::cerr << qPrintable(e.description()) << std::endl;
std::cerr << "Build data available under " << qPrintable(benchmarker.rawDataBaseDir())
<< '.' << std::endl;
return EXIT_FAILURE;
}
}
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