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add atan2 host benchmark

This commit is contained in:
Matt Huszagh 2020-12-17 14:01:57 -08:00
parent 17cf71f22b
commit 3125365a15
3 changed files with 29 additions and 14 deletions
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2
dsp/Cargo.toml
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@ -12,7 +12,7 @@ serde = { version = "1.0", features = ["derive"], default-features = false }
criterion = "0.3"
[[bench]]
name = "cossin"
name = "trig"
harness = false
[features]

13
dsp/benches/cossin.rs
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@ -1,13 +0,0 @@
use core::f32::consts::PI;
use criterion::{black_box, criterion_group, criterion_main, Criterion};
use dsp::trig::cossin;
fn cossin_bench(c: &mut Criterion) {
let zi = -0x7304_2531_i32;
let zf = zi as f32 / i32::MAX as f32 * PI;
c.bench_function("cossin(zi)", |b| b.iter(|| cossin(black_box(zi))));
c.bench_function("zf.sin_cos()", |b| b.iter(|| black_box(zf).sin_cos()));
}
criterion_group!(benches, cossin_bench);
criterion_main!(benches);

28
dsp/benches/trig.rs Normal file
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@ -0,0 +1,28 @@
use core::f32::consts::PI;
use criterion::{black_box, criterion_group, criterion_main, Criterion};
use dsp::trig::{atan2, cossin};
fn atan2_bench(c: &mut Criterion) {
let xi = (10 << 16) as i32;
let xf = xi as f32 / i32::MAX as f32;
let yi = (-26_328 << 16) as i32;
let yf = yi as f32 / i32::MAX as f32;
c.bench_function("atan2(y, x)", |b| {
b.iter(|| atan2(black_box(yi), black_box(xi)))
});
c.bench_function("y.atan2(x)", |b| {
b.iter(|| black_box(yf).atan2(black_box(xf)))
});
}
fn cossin_bench(c: &mut Criterion) {
let zi = -0x7304_2531_i32;
let zf = zi as f32 / i32::MAX as f32 * PI;
c.bench_function("cossin(zi)", |b| b.iter(|| cossin(black_box(zi))));
c.bench_function("zf.sin_cos()", |b| b.iter(|| black_box(zf).sin_cos()));
}
criterion_group!(benches, atan2_bench, cossin_bench);
criterion_main!(benches);