File indexing completed on 2024-05-12 05:43:25
0001 /* 0002 Copyright (C) 2015 Volker Krause <vkrause@kde.org> 0003 0004 This program is free software; you can redistribute it and/or modify it 0005 under the terms of the GNU Library General Public License as published by 0006 the Free Software Foundation; either version 2 of the License, or (at your 0007 option) any later version. 0008 0009 This program is distributed in the hope that it will be useful, but WITHOUT 0010 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 0011 FITNESS FOR A PARTICULAR PURPOSE. See the GNU Library General Public 0012 License for more details. 0013 0014 You should have received a copy of the GNU General Public License 0015 along with this program. If not, see <https://www.gnu.org/licenses/>. 0016 */ 0017 0018 #ifndef LDBENCHMARK_H 0019 #define LDBENCHMARK_H 0020 0021 #include <QByteArray> 0022 #include <QStringList> 0023 #include <QVector> 0024 0025 class QProcess; 0026 0027 class ElfFileSet; 0028 class ElfFile; 0029 0030 /** Load all libraries in dependency order one by one and measure the needed time. */ 0031 class LDBenchmark 0032 { 0033 public: 0034 void measureFileSet(ElfFileSet *fileSet); 0035 0036 void writeCSV(const QString &fileName); 0037 0038 /** Number of files we have results for. */ 0039 int size() const; 0040 0041 enum class LoadMode { None, Now, Lazy }; 0042 double median(LoadMode mode, int index) const; 0043 double min(LoadMode mode, int index) const; 0044 ElfFile* file(int index) const; 0045 0046 private: 0047 void measure(LoadMode mode, int iterations); 0048 void readResults(QProcess *proc, LoadMode mode); 0049 0050 ElfFileSet *m_fileSet = nullptr; 0051 0052 struct Result { 0053 QByteArray fileName; 0054 QVector<double> lazy; 0055 QVector<double> now; 0056 }; 0057 QVector<Result> m_results; 0058 QStringList m_args; 0059 }; 0060 0061 #endif // LDBENCHMARK_H