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Benchmarking: added float->float decimators and corresponding benchmark test

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This commit is contained in:
f4exb
2018-04-25 18:01:01 +02:00
parent b03e9c59cb
commit 17ea5f29b3
12 changed files with 2074 additions and 25 deletions
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sdrbench/mainbench.cpp
+76 -10
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@@ -26,7 +26,8 @@ MainBench *MainBench::m_instance = 0;
MainBench::MainBench(qtwebapp::LoggerWithFile *logger, const ParserBench& parser, QObject *parent) :
QObject(parent),
m_logger(logger),
m_parser(parser)
m_parser(parser),
m_uniform_distribution(-1.0, 1.0)
{
qDebug() << "MainBench::MainBench: start";
m_instance = this;
@@ -49,6 +50,10 @@ void MainBench::run()
testDecimateII();
} else if (m_parser.getTestType() == ParserBench::TestDecimatorsFI) {
testDecimateFI();
} else if (m_parser.getTestType() == ParserBench::TestDecimatorsFF) {
testDecimateFF();
} else {
qDebug() << "MainBench::run: unknown test type: " << m_parser.getTestType();
}
emit finished();
@@ -73,13 +78,9 @@ void MainBench::testDecimateII()
}
nsecs = timer.nsecsElapsed();
QDebug debug = qDebug();
debug.noquote();
debug << tr("MainBench::testDecimateII: ran test in %L1 ns").arg(nsecs);
printResults("MainBench::testDecimateII", nsecs);
qDebug() << "MainBench::testDecimateII: cleanup test data";
delete[] buf;
}
@@ -92,6 +93,8 @@ void MainBench::testDecimateFI()
float *buf = new float[m_parser.getNbSamples()*2];
m_convertBuffer.resize(m_parser.getNbSamples()/(1<<m_parser.getLog2Factor()));
auto my_rand = std::bind(m_uniform_distribution, m_generator);
std::generate(buf, buf + m_parser.getNbSamples()*2 - 1, my_rand); // make sure data is in [-1.0..1.0] range
qDebug() << "MainBench::testDecimateFI: run test";
timer.start();
@@ -102,13 +105,36 @@ void MainBench::testDecimateFI()
}
nsecs = timer.nsecsElapsed();
QDebug debug = qDebug();
debug.noquote();
debug << tr("MainBench::testDecimateFI: ran test in %L1 ns").arg(nsecs);
printResults("MainBench::testDecimateFI", nsecs);
qDebug() << "MainBench::testDecimateFI: cleanup test data";
delete[] buf;
}
void MainBench::testDecimateFF()
{
QElapsedTimer timer;
qint64 nsecs;
qDebug() << "MainBench::testDecimateFF: create test data";
float *buf = new float[m_parser.getNbSamples()*2];
m_convertBufferF.resize(m_parser.getNbSamples()/(1<<m_parser.getLog2Factor()));
auto my_rand = std::bind(m_uniform_distribution, m_generator);
std::generate(buf, buf + m_parser.getNbSamples()*2 - 1, my_rand); // make sure data is in [-1.0..1.0] range
qDebug() << "MainBench::testDecimateFF: run test";
timer.start();
for (uint32_t i = 0; i < m_parser.getRepetition(); i++)
{
decimateFF(buf, m_parser.getNbSamples()*2);
}
nsecs = timer.nsecsElapsed();
printResults("MainBench::testDecimateFF", nsecs);
qDebug() << "MainBench::testDecimateFF: cleanup test data";
delete[] buf;
}
@@ -175,3 +201,43 @@ void MainBench::decimateFI(const float *buf, int len)
break;
}
}
void MainBench::decimateFF(const float *buf, int len)
{
FSampleVector::iterator it = m_convertBufferF.begin();
switch (m_parser.getLog2Factor())
{
case 0:
m_decimatorsFF.decimate1(&it, buf, len);
break;
case 1:
m_decimatorsFF.decimate2_cen(&it, buf, len);
break;
case 2:
m_decimatorsFF.decimate4_cen(&it, buf, len);
break;
case 3:
m_decimatorsFF.decimate8_cen(&it, buf, len);
break;
case 4:
m_decimatorsFF.decimate16_cen(&it, buf, len);
break;
case 5:
m_decimatorsFF.decimate32_cen(&it, buf, len);
break;
case 6:
m_decimatorsFF.decimate64_cen(&it, buf, len);
break;
default:
break;
}
}
void MainBench::printResults(const QString& prefix, qint64 nsecs)
{
double ratekSs = (m_parser.getNbSamples()*m_parser.getRepetition() / (double) nsecs) * 1e6;
QDebug debug = qDebug();
debug.noquote();
debug << tr("%1: ran test in %L2 ns - sample rate: %3 kS/s").arg(prefix).arg(nsecs).arg(ratekSs);
}