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Adds a few more benchmarks for poly operators. Changed benchmarks to use a seeded rng for reproducibility.

This commit is contained in:
Fletcher Haynes 2018-09-13 11:53:14 -07:00 committed by Andreas Fackler
parent 5f09f96345
commit e0c488a214
1 changed files with 45 additions and 8 deletions
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53
benches/bench.rs
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@ -8,13 +8,16 @@ use criterion::Criterion;
use pairing::bls12_381::Fr;
use threshold_crypto::poly::Poly;
const TEST_DEGREES: [usize; 4] = [5, 10, 20, 40];
const RNG_SEED: [u32; 4] = [1, 2, 3, 4];
mod poly_benches {
use super::*;
use rand::Rng;
use rand::{Rng, SeedableRng, XorShiftRng};
// Benchmarks multiplication of two polynomials.
/// Benchmarks multiplication of two polynomials.
fn multiplication(c: &mut Criterion) {
let mut rng = rand::thread_rng();
let mut rng = XorShiftRng::from_seed(RNG_SEED);
c.bench_function_over_inputs(
"Polynomial multiplication",
move |b, &&deg| {
@ -25,27 +28,61 @@ mod poly_benches {
};
b.iter_with_setup(rand_factors, |(lhs, rhs)| &lhs * &rhs)
},
&[5, 10, 20, 40],
&TEST_DEGREES,
);
}
// Benchmarks Lagrange interpolation for a polynomial.
/// Benchmarks subtraction of two polynomials
fn subtraction(c: &mut Criterion) {
let mut rng = XorShiftRng::from_seed(RNG_SEED);
c.bench_function_over_inputs(
"Polynomial subtraction",
move |b, &&deg| {
let rand_factors = || {
let lhs = Poly::random(deg, &mut rng);
let rhs = Poly::random(deg, &mut rng);
(lhs, rhs)
};
b.iter_with_setup(rand_factors, |(lhs, rhs)| &lhs - &rhs)
},
&TEST_DEGREES,
);
}
/// Benchmarks addition of two polynomials
fn addition(c: &mut Criterion) {
let mut rng = XorShiftRng::from_seed(RNG_SEED);
c.bench_function_over_inputs(
"Polynomial addition",
move |b, &&deg| {
let rand_factors = || {
let lhs = Poly::random(deg, &mut rng);
let rhs = Poly::random(deg, &mut rng);
(lhs, rhs)
};
b.iter_with_setup(rand_factors, |(lhs, rhs)| &lhs + &rhs)
},
&TEST_DEGREES,
);
}
/// Benchmarks Lagrange interpolation for a polynomial.
fn interpolate(c: &mut Criterion) {
let mut rng = rand::thread_rng();
let mut rng = XorShiftRng::from_seed(RNG_SEED);
c.bench_function_over_inputs(
"Polynomial interpolation",
move |b, &&deg| {
let rand_samples = || (0..=deg).map(|i| (i, rng.gen::<Fr>())).collect::<Vec<_>>();
b.iter_with_setup(rand_samples, Poly::interpolate)
},
&[5, 10, 20, 40],
&TEST_DEGREES,
);
}
criterion_group!{
name = poly_benches;
config = Criterion::default();
targets = multiplication, interpolate,
targets = multiplication, interpolate, addition, subtraction,
}
}