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Migrate Eigen benchmarks to the Google benchmark framework

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libeigen/eigen!2132

Closes #3025

Co-authored-by: Rasmus Munk Larsen <rmlarsen@gmail.com>
This commit is contained in:
Rasmus Munk Larsen
2026-02-17 20:51:36 -08:00
parent 740cac97b4
commit 3108f6360e
23 changed files with 1632 additions and 0 deletions
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41
benchmarks/bench_move_semantics.cpp Normal file
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#include <benchmark/benchmark.h>
#include <Eigen/Core>
#include "../test/MovableScalar.h"
#include <utility>
template <typename MatrixType>
void copy_matrix(MatrixType& m) {
MatrixType tmp(m);
m = tmp;
}
template <typename MatrixType>
void move_matrix(MatrixType&& m) {
MatrixType tmp(std::move(m));
m = std::move(tmp);
}
template <typename Scalar>
static void BM_CopySemantics(benchmark::State& state) {
using MatrixType = Eigen::Matrix<Eigen::MovableScalar<Scalar>, 1, 10>;
MatrixType data = MatrixType::Random().eval();
for (auto _ : state) {
copy_matrix(data);
benchmark::DoNotOptimize(data.data());
}
}
template <typename Scalar>
static void BM_MoveSemantics(benchmark::State& state) {
using MatrixType = Eigen::Matrix<Eigen::MovableScalar<Scalar>, 1, 10>;
MatrixType data = MatrixType::Random().eval();
for (auto _ : state) {
move_matrix(std::move(data));
benchmark::DoNotOptimize(data.data());
}
}
BENCHMARK(BM_CopySemantics<float>);
BENCHMARK(BM_MoveSemantics<float>);
BENCHMARK(BM_CopySemantics<double>);
BENCHMARK(BM_MoveSemantics<double>);