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44 lines
1.2 KiB
Rust
44 lines
1.2 KiB
Rust
use criterion::{criterion_group, Bencher, BenchmarkId, Criterion};
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use rand::Rng;
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use ratatui::{
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buffer::Buffer,
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layout::Rect,
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widgets::{Sparkline, Widget},
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};
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/// Benchmark for rendering a sparkline.
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fn sparkline(c: &mut Criterion) {
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let mut group = c.benchmark_group("sparkline");
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let mut rng = rand::thread_rng();
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for data_count in [64, 256, 2048] {
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let data: Vec<u64> = (0..data_count)
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.map(|_| rng.gen_range(0..data_count))
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.collect();
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// Render a basic sparkline
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group.bench_with_input(
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BenchmarkId::new("render", data_count),
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&Sparkline::default().data(&data),
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render,
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);
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}
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group.finish();
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}
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/// render the block into a buffer of the given `size`
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fn render(bencher: &mut Bencher, sparkline: &Sparkline) {
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let mut buffer = Buffer::empty(Rect::new(0, 0, 200, 50));
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// We use `iter_batched` to clone the value in the setup function.
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// See https://github.com/ratatui/ratatui/pull/377.
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bencher.iter_batched(
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|| sparkline.clone(),
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|bench_sparkline| {
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bench_sparkline.render(buffer.area, &mut buffer);
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},
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criterion::BatchSize::LargeInput,
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);
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}
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criterion_group!(benches, sparkline);
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