Adds a few more benchmarks for poly operators. Changed benchmarks to use a seeded rng for reproducibility.
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@ -8,13 +8,16 @@ use criterion::Criterion;
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use pairing::bls12_381::Fr;
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use threshold_crypto::poly::Poly;
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const TEST_DEGREES: [usize; 4] = [5, 10, 20, 40];
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const RNG_SEED: [u32; 4] = [1, 2, 3, 4];
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mod poly_benches {
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use super::*;
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use rand::Rng;
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use rand::{Rng, SeedableRng, XorShiftRng};
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// Benchmarks multiplication of two polynomials.
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/// Benchmarks multiplication of two polynomials.
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fn multiplication(c: &mut Criterion) {
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let mut rng = rand::thread_rng();
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let mut rng = XorShiftRng::from_seed(RNG_SEED);
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c.bench_function_over_inputs(
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"Polynomial multiplication",
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move |b, &°| {
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@ -25,27 +28,61 @@ mod poly_benches {
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};
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b.iter_with_setup(rand_factors, |(lhs, rhs)| &lhs * &rhs)
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},
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&[5, 10, 20, 40],
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&TEST_DEGREES,
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);
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}
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// Benchmarks Lagrange interpolation for a polynomial.
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/// Benchmarks subtraction of two polynomials
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fn subtraction(c: &mut Criterion) {
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let mut rng = XorShiftRng::from_seed(RNG_SEED);
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c.bench_function_over_inputs(
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"Polynomial subtraction",
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move |b, &°| {
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let rand_factors = || {
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let lhs = Poly::random(deg, &mut rng);
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let rhs = Poly::random(deg, &mut rng);
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(lhs, rhs)
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};
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b.iter_with_setup(rand_factors, |(lhs, rhs)| &lhs - &rhs)
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},
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&TEST_DEGREES,
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);
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}
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/// Benchmarks addition of two polynomials
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fn addition(c: &mut Criterion) {
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let mut rng = XorShiftRng::from_seed(RNG_SEED);
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c.bench_function_over_inputs(
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"Polynomial addition",
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move |b, &°| {
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let rand_factors = || {
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let lhs = Poly::random(deg, &mut rng);
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let rhs = Poly::random(deg, &mut rng);
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(lhs, rhs)
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};
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b.iter_with_setup(rand_factors, |(lhs, rhs)| &lhs + &rhs)
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},
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&TEST_DEGREES,
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);
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}
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/// Benchmarks Lagrange interpolation for a polynomial.
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fn interpolate(c: &mut Criterion) {
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let mut rng = rand::thread_rng();
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let mut rng = XorShiftRng::from_seed(RNG_SEED);
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c.bench_function_over_inputs(
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"Polynomial interpolation",
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move |b, &°| {
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let rand_samples = || (0..=deg).map(|i| (i, rng.gen::<Fr>())).collect::<Vec<_>>();
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b.iter_with_setup(rand_samples, Poly::interpolate)
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},
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&[5, 10, 20, 40],
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&TEST_DEGREES,
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);
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}
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criterion_group!{
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name = poly_benches;
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config = Criterion::default();
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targets = multiplication, interpolate,
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targets = multiplication, interpolate, addition, subtraction,
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}
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}
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