ardupilot/libraries/AP_Math/benchmarks/benchmark_matrix.cpp

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#include <AP_gbenchmark.h>
#include <AP_Math/AP_Math.h>
static void BM_MatrixMultiplication(benchmark::State& state)
{
Matrix3f m1(Vector3f(1.0f, 2.0f, 3.0f),
Vector3f(4.0f, 5.0f, 6.0f),
Vector3f(7.0f, 8.0f, 9.0f));
Matrix3f m2(Vector3f(1.0f, 2.0f, 3.0f),
Vector3f(4.0f, 5.0f, 6.0f),
Vector3f(7.0f, 8.0f, 9.0f));
while (state.KeepRunning()) {
Matrix3f m3 = m1 * m2;
gbenchmark_escape(&m3);
}
}
BENCHMARK(BM_MatrixMultiplication);
BENCHMARK_MAIN();