mirror of
https://github.com/gnss-sdr/gnss-sdr
synced 2024-12-13 11:40:33 +00:00
71 lines
2.2 KiB
C++
71 lines
2.2 KiB
C++
/*!
|
|
* \file benchmark_preamble.cc
|
|
* \brief Benchmark for preamble conversion implementations
|
|
* \author Carles Fernandez-Prades, 2020. cfernandez(at)cttc.es
|
|
*
|
|
*
|
|
* -----------------------------------------------------------------------------
|
|
*
|
|
* GNSS-SDR is a Global Navigation Satellite System software-defined receiver.
|
|
* This file is part of GNSS-SDR.
|
|
*
|
|
* Copyright (C) 2020 (see AUTHORS file for a list of contributors)
|
|
* SPDX-License-Identifier: GPL-3.0-or-later
|
|
*
|
|
* -----------------------------------------------------------------------------
|
|
*/
|
|
|
|
#include "GPS_L1_CA.h"
|
|
#include <benchmark/benchmark.h>
|
|
#include <algorithm>
|
|
#include <array>
|
|
|
|
void bm_forloop(benchmark::State& state)
|
|
{
|
|
std::array<int32_t, GPS_CA_PREAMBLE_LENGTH_SYMBOLS> d_preamble_samples{};
|
|
volatile int32_t res; // Prevent the compiler from optimizing the loop away
|
|
while (state.KeepRunning())
|
|
{
|
|
int32_t n = 0;
|
|
for (int32_t i = 0; i < GPS_CA_PREAMBLE_LENGTH_SYMBOLS; i++)
|
|
{
|
|
if (GPS_CA_PREAMBLE_SYMBOLS_STR[i] == '1')
|
|
{
|
|
d_preamble_samples[n] = 1;
|
|
n++;
|
|
}
|
|
else
|
|
{
|
|
d_preamble_samples[n] = -1;
|
|
n++;
|
|
}
|
|
}
|
|
res = d_preamble_samples[GPS_CA_PREAMBLE_LENGTH_SYMBOLS - 1];
|
|
}
|
|
if (res > 1)
|
|
{
|
|
// Avoid unused-but-set-variable warning
|
|
}
|
|
}
|
|
|
|
|
|
void bm_generate(benchmark::State& state)
|
|
{
|
|
std::array<int32_t, GPS_CA_PREAMBLE_LENGTH_SYMBOLS> d_preamble_samples{};
|
|
volatile int32_t res; // Prevent the compiler from optimizing the loop away
|
|
while (state.KeepRunning())
|
|
{
|
|
std::generate(d_preamble_samples.begin(), d_preamble_samples.end(), [n = 0]() mutable { return (GPS_CA_PREAMBLE_SYMBOLS_STR[n++] == '1' ? 1 : -1); });
|
|
res = d_preamble_samples[GPS_CA_PREAMBLE_LENGTH_SYMBOLS - 1];
|
|
}
|
|
if (res > 1)
|
|
{
|
|
// Avoid unused-but-set-variable warning
|
|
}
|
|
}
|
|
|
|
|
|
BENCHMARK(bm_forloop);
|
|
BENCHMARK(bm_generate);
|
|
BENCHMARK_MAIN();
|