1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
|
/*
==============================================================================
This file is part of the JUCE library.
Copyright (c) 2017 - ROLI Ltd.
JUCE is an open source library subject to commercial or open-source
licensing.
The code included in this file is provided under the terms of the ISC license
http://www.isc.org/downloads/software-support-policy/isc-license. Permission
To use, copy, modify, and/or distribute this software for any purpose with or
without fee is hereby granted provided that the above copyright notice and
this permission notice appear in all copies.
JUCE IS PROVIDED "AS IS" WITHOUT ANY WARRANTY, AND ALL WARRANTIES, WHETHER
EXPRESSED OR IMPLIED, INCLUDING MERCHANTABILITY AND FITNESS FOR PURPOSE, ARE
DISCLAIMED.
==============================================================================
*/
namespace juce
{
static void appendToFile (const File& f, const String& s)
{
if (f.getFullPathName().isNotEmpty())
{
FileOutputStream out (f);
if (! out.failedToOpen())
out << s << newLine;
}
}
PerformanceCounter::PerformanceCounter (const String& name, int runsPerPrintout, const File& loggingFile)
: runsPerPrint (runsPerPrintout), startTime (0), outputFile (loggingFile)
{
stats.name = name;
appendToFile (outputFile, "**** Counter for \"" + name + "\" started at: " + Time::getCurrentTime().toString (true, true));
}
PerformanceCounter::~PerformanceCounter()
{
printStatistics();
}
PerformanceCounter::Statistics::Statistics() noexcept
: averageSeconds(), maximumSeconds(), minimumSeconds(), totalSeconds(), numRuns()
{
}
void PerformanceCounter::Statistics::clear() noexcept
{
averageSeconds = maximumSeconds = minimumSeconds = totalSeconds = 0;
numRuns = 0;
}
void PerformanceCounter::Statistics::addResult (double elapsed) noexcept
{
if (numRuns == 0)
{
maximumSeconds = elapsed;
minimumSeconds = elapsed;
}
else
{
maximumSeconds = jmax (maximumSeconds, elapsed);
minimumSeconds = jmin (minimumSeconds, elapsed);
}
++numRuns;
totalSeconds += elapsed;
}
static String timeToString (double secs)
{
return String ((int64) (secs * (secs < 0.01 ? 1000000.0 : 1000.0) + 0.5))
+ (secs < 0.01 ? " microsecs" : " millisecs");
}
String PerformanceCounter::Statistics::toString() const
{
MemoryOutputStream s;
s << "Performance count for \"" << name << "\" over " << numRuns << " run(s)" << newLine
<< "Average = " << timeToString (averageSeconds)
<< ", minimum = " << timeToString (minimumSeconds)
<< ", maximum = " << timeToString (maximumSeconds)
<< ", total = " << timeToString (totalSeconds);
return s.toString();
}
void PerformanceCounter::start() noexcept
{
startTime = Time::getHighResolutionTicks();
}
bool PerformanceCounter::stop()
{
stats.addResult (Time::highResolutionTicksToSeconds (Time::getHighResolutionTicks() - startTime));
if (stats.numRuns < runsPerPrint)
return false;
printStatistics();
return true;
}
void PerformanceCounter::printStatistics()
{
const String desc (getStatisticsAndReset().toString());
Logger::outputDebugString (desc);
appendToFile (outputFile, desc);
}
PerformanceCounter::Statistics PerformanceCounter::getStatisticsAndReset()
{
Statistics s (stats);
stats.clear();
if (s.numRuns > 0)
s.averageSeconds = s.totalSeconds / s.numRuns;
return s;
}
} // namespace juce
|
