kopia lustrzana https://github.com/f4exb/sdrangel
124 wiersze
4.4 KiB
C++
124 wiersze
4.4 KiB
C++
//////////////////////////////////////////////////////////////////////////////////
|
|
// Copyright (C) 2023 Jon Beniston, M7RCE //
|
|
// //
|
|
// This program is free software; you can redistribute it and/or modify //
|
|
// it under the terms of the GNU General Public License as published by //
|
|
// the Free Software Foundation as version 3 of the License, or //
|
|
// (at your option) any later version. //
|
|
// //
|
|
// This program is distributed in the hope that it will be useful, //
|
|
// but WITHOUT ANY WARRANTY; without even the implied warranty of //
|
|
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the //
|
|
// GNU General Public License V3 for more details. //
|
|
// //
|
|
// You should have received a copy of the GNU General Public License //
|
|
// along with this program. If not, see <http://www.gnu.org/licenses/>. //
|
|
//////////////////////////////////////////////////////////////////////////////////
|
|
|
|
#ifndef INCLUDE_UTIL_PROFILEDATA_H_
|
|
#define INCLUDE_UTIL_PROFILEDATA_H_
|
|
|
|
#include <QHash>
|
|
#include <QMutex>
|
|
#include <QElapsedTimer>
|
|
|
|
#include <cmath>
|
|
|
|
#include "export.h"
|
|
|
|
// Profiler enables runtime collection of profile data (time taken to execute code)
|
|
// that can be displayed in the GUI
|
|
//
|
|
// PROFILER_START() and PROFILER_STOP() macros should be used in the same function:
|
|
// void func() {
|
|
// PROFILER_START()
|
|
// do_something();
|
|
// PROFILER_STOP("slow_code")
|
|
// }
|
|
//
|
|
// The parameters to PROFILER_STOP are:
|
|
// name: Name for the code being profiled. Profiles using the same name are averaged.
|
|
|
|
#ifdef ENABLE_PROFILER
|
|
#define PROFILER_START() \
|
|
QElapsedTimer profileTimer; \
|
|
profileTimer.start();
|
|
#define PROFILER_RESTART() \
|
|
profileTimer.start();
|
|
#define PROFILER_STOP(name) \
|
|
{ \
|
|
qint64 timeNanoSec = profileTimer.nsecsElapsed(); \
|
|
QHash<QString, ProfileData>& globalData = GlobalProfileData::getProfileData(); \
|
|
if (!globalData.contains(name)) { \
|
|
globalData.insert(name, ProfileData()); \
|
|
} \
|
|
ProfileData& profileData = globalData[name]; \
|
|
profileData.add(timeNanoSec); \
|
|
GlobalProfileData::releaseProfileData(); \
|
|
}
|
|
#else
|
|
#define PROFILER_START()
|
|
#define PROFILER_RESTART()
|
|
#define PROFILER_STOP(name)
|
|
#endif
|
|
|
|
class ProfileData
|
|
{
|
|
public:
|
|
ProfileData() :
|
|
m_numSamples(0),
|
|
m_last(0),
|
|
m_total(0)
|
|
{ }
|
|
|
|
void reset()
|
|
{
|
|
m_numSamples = 0;
|
|
m_total = 0;
|
|
}
|
|
|
|
void add(qint64 sample)
|
|
{
|
|
m_last = sample;
|
|
m_total += sample;
|
|
m_numSamples++;
|
|
}
|
|
|
|
double getAverage() const
|
|
{
|
|
if (m_numSamples > 0) {
|
|
return m_total / (double)m_numSamples;
|
|
} else {
|
|
return nan("");
|
|
}
|
|
}
|
|
|
|
qint64 getTotal() const { return m_total; }
|
|
qint64 getLast() const { return m_last; }
|
|
quint64 getNumSamples() const { return m_numSamples; }
|
|
|
|
private:
|
|
quint64 m_numSamples;
|
|
qint64 m_last;
|
|
qint64 m_total;
|
|
};
|
|
|
|
// Global thread-safe profile data that can be displayed in the GUI
|
|
class SDRBASE_API GlobalProfileData
|
|
{
|
|
public:
|
|
|
|
// Calls to getProfileData must be paired with releaseProfileData
|
|
static QHash<QString, ProfileData>& getProfileData();
|
|
static void releaseProfileData();
|
|
static void resetProfileData();
|
|
|
|
private:
|
|
|
|
static QHash<QString, ProfileData> m_profileData;
|
|
static QMutex m_mutex;
|
|
|
|
};
|
|
|
|
#endif /* INCLUDE_UTIL_PROFILEDATA_H_ */
|