Qt 4.8
qbenchmarkmeasurement.cpp
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41 
42 #include "QtTest/private/qbenchmarkmeasurement_p.h"
43 #include "QtTest/private/qbenchmark_p.h"
44 #include "QtTest/private/qbenchmarkmetric_p.h"
45 #include "qbenchmark.h"
46 #include <qdebug.h>
47 
49 
50 // QBenchmarkTimeMeasurer implementation
51 
53 {
54  time.start();
55 }
56 
58 {
59  return time.elapsed();
60 }
61 
63 {
64  return time.elapsed();
65 }
66 
68 {
69  return (measurement > 50);
70 }
71 
73 {
74  return suggestion;
75 }
76 
78 {
79  return true;
80 }
81 
83 {
84  return 1;
85 }
86 
88 {
90 }
91 
92 #ifdef HAVE_TICK_COUNTER // defined in 3rdparty/cycle_p.h
93 
94 void QBenchmarkTickMeasurer::start()
95 {
96  startTicks = getticks();
97 }
98 
99 qint64 QBenchmarkTickMeasurer::checkpoint()
100 {
101  CycleCounterTicks now = getticks();
102  return qRound64(elapsed(now, startTicks));
103 }
104 
105 qint64 QBenchmarkTickMeasurer::stop()
106 {
107  CycleCounterTicks now = getticks();
108  return qRound64(elapsed(now, startTicks));
109 }
110 
111 bool QBenchmarkTickMeasurer::isMeasurementAccepted(qint64)
112 {
113  return true;
114 }
115 
116 int QBenchmarkTickMeasurer::adjustIterationCount(int)
117 {
118  return 1;
119 }
120 
121 int QBenchmarkTickMeasurer::adjustMedianCount(int)
122 {
123  return 1;
124 }
125 
126 bool QBenchmarkTickMeasurer::needsWarmupIteration()
127 {
128  return true;
129 }
130 
131 QTest::QBenchmarkMetric QBenchmarkTickMeasurer::metricType()
132 {
133  return QTest::CPUTicks;
134 }
135 
136 #endif
137 
138 
static qint64 getticks()
static double elapsed(qint64 after, qint64 before)
#define QT_END_NAMESPACE
This macro expands to.
Definition: qglobal.h:90
QBenchmarkMetric
This enum lists all the things that can be benchmarked.
Q_DECL_CONSTEXPR qint64 qRound64(qreal d)
Definition: qglobal.h:1210
bool isMeasurementAccepted(qint64 measurement)
int adjustMedianCount(int suggestion)
qint64 elapsed() const
Returns the number of milliseconds since this QElapsedTimer was last started.
#define QT_BEGIN_NAMESPACE
This macro expands to.
Definition: qglobal.h:89
__int64 qint64
Definition: qglobal.h:942
int adjustIterationCount(int sugestion)
void start()
Starts this timer.
QTest::QBenchmarkMetric metricType()