1 | /**************************************************************************** |
2 | ** |
3 | ** Copyright (C) 2016 Intel Corporation. |
4 | ** Contact: https://www.qt.io/licensing/ |
5 | ** |
6 | ** This file is part of the QtCore module of the Qt Toolkit. |
7 | ** |
8 | ** $QT_BEGIN_LICENSE:LGPL$ |
9 | ** Commercial License Usage |
10 | ** Licensees holding valid commercial Qt licenses may use this file in |
11 | ** accordance with the commercial license agreement provided with the |
12 | ** Software or, alternatively, in accordance with the terms contained in |
13 | ** a written agreement between you and The Qt Company. For licensing terms |
14 | ** and conditions see https://www.qt.io/terms-conditions. For further |
15 | ** information use the contact form at https://www.qt.io/contact-us. |
16 | ** |
17 | ** GNU Lesser General Public License Usage |
18 | ** Alternatively, this file may be used under the terms of the GNU Lesser |
19 | ** General Public License version 3 as published by the Free Software |
20 | ** Foundation and appearing in the file LICENSE.LGPL3 included in the |
21 | ** packaging of this file. Please review the following information to |
22 | ** ensure the GNU Lesser General Public License version 3 requirements |
23 | ** will be met: https://www.gnu.org/licenses/lgpl-3.0.html. |
24 | ** |
25 | ** GNU General Public License Usage |
26 | ** Alternatively, this file may be used under the terms of the GNU |
27 | ** General Public License version 2.0 or (at your option) the GNU General |
28 | ** Public license version 3 or any later version approved by the KDE Free |
29 | ** Qt Foundation. The licenses are as published by the Free Software |
30 | ** Foundation and appearing in the file LICENSE.GPL2 and LICENSE.GPL3 |
31 | ** included in the packaging of this file. Please review the following |
32 | ** information to ensure the GNU General Public License requirements will |
33 | ** be met: https://www.gnu.org/licenses/gpl-2.0.html and |
34 | ** https://www.gnu.org/licenses/gpl-3.0.html. |
35 | ** |
36 | ** $QT_END_LICENSE$ |
37 | ** |
38 | ****************************************************************************/ |
39 | |
40 | #ifndef QBENCHMARKPERFEVENTS_P_H |
41 | #define QBENCHMARKPERFEVENTS_P_H |
42 | |
43 | // |
44 | // W A R N I N G |
45 | // ------------- |
46 | // |
47 | // This file is not part of the Qt API. It exists purely as an |
48 | // implementation detail. This header file may change from version to |
49 | // version without notice, or even be removed. |
50 | // |
51 | // We mean it. |
52 | // |
53 | |
54 | #include <QtTest/private/qbenchmarkmeasurement_p.h> |
55 | |
56 | QT_BEGIN_NAMESPACE |
57 | |
58 | class QBenchmarkPerfEventsMeasurer : public QBenchmarkMeasurerBase |
59 | { |
60 | public: |
61 | QBenchmarkPerfEventsMeasurer(); |
62 | ~QBenchmarkPerfEventsMeasurer(); |
63 | void init() override; |
64 | void start() override; |
65 | qint64 checkpoint() override; |
66 | qint64 stop() override; |
67 | bool isMeasurementAccepted(qint64 measurement) override; |
68 | int adjustIterationCount(int suggestion) override; |
69 | int adjustMedianCount(int suggestion) override; |
70 | bool repeatCount() override { return true; } |
71 | bool needsWarmupIteration() override { return true; } |
72 | QTest::QBenchmarkMetric metricType() override; |
73 | |
74 | static bool isAvailable(); |
75 | static QTest::QBenchmarkMetric metricForEvent(quint32 type, quint64 event_id); |
76 | static void setCounter(const char *name); |
77 | static void listCounters(); |
78 | private: |
79 | int fd = -1; |
80 | |
81 | qint64 readValue(); |
82 | }; |
83 | |
84 | QT_END_NAMESPACE |
85 | |
86 | #endif // QBENCHMARKPERFEVENTS_P_H |
87 | |