multi input benchmark
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#![allow(unused)]
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use criterion::{black_box, criterion_group, criterion_main, Criterion, BenchmarkId};
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use criterion::{black_box, criterion_group, criterion_main, Criterion, BenchmarkId, Throughput};
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use revsqrt::{inverse_sqrt, fast_inverse_sqrt};
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const SIZE: f32 = 1337.1337;
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pub fn criterion_benchmark(c: &mut Criterion) {
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const FCONST: f32 = 1024.12481224;
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const FCONST1: f32 = 4025.724812234;
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pub fn single_input(c: &mut Criterion) {
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c.bench_with_input(BenchmarkId::new("regular rsqrt", SIZE),&SIZE, |b, &s| b.iter(|| inverse_sqrt(s)));
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c.bench_with_input(BenchmarkId::new("fast rsqrt", SIZE),&SIZE, |b, &s| b.iter(|| fast_inverse_sqrt(s)));
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}
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criterion_group!(benches, criterion_benchmark);
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pub fn multi_input(c: &mut Criterion) {
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let mut group = c.benchmark_group("multi_input");
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for size in [FCONST, 2.2 * FCONST, 4.24 * FCONST, 8.64 * FCONST, 16.12 * FCONST].iter() {
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group.throughput(Throughput::Bytes(*size as u64));
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group.bench_with_input(BenchmarkId::new("regular rsqrt mixed input", FCONST), size, |b, &size| {
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b.iter(||inverse_sqrt(size));
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});
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}
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for size in [FCONST1, 2.2 * FCONST1, 4.24 * FCONST1, 8.64 * FCONST1, 16.12 * FCONST1].iter() {
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group.throughput(Throughput::Bytes(*size as u64));
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group.bench_with_input(BenchmarkId::new("fast rsqrt mixed input", FCONST1), size, |b, &size| {
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b.iter(||fast_inverse_sqrt(size));
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});
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}
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group.finish();
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}
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criterion_group!(benches, single_input, multi_input);
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criterion_main!(benches);
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