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https://github.com/ratatui-org/ratatui
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72 lines
2.2 KiB
Rust
72 lines
2.2 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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prelude::Direction,
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widgets::{Bar, BarChart, BarGroup, Widget},
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};
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/// Benchmark for rendering a barchart.
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fn barchart(c: &mut Criterion) {
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let mut group = c.benchmark_group("barchart");
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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<Bar> = (0..data_count)
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.map(|i| {
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Bar::default()
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.label(format!("B{i}").into())
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.value(rng.gen_range(0..data_count))
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})
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.collect();
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let bargroup = BarGroup::default().bars(&data);
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// Render a basic barchart
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group.bench_with_input(
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BenchmarkId::new("render", data_count),
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&BarChart::default().data(bargroup.clone()),
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render,
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);
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// Render an horizontal barchart
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group.bench_with_input(
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BenchmarkId::new("render_horizontal", data_count),
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&BarChart::default()
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.direction(Direction::Horizontal)
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.data(bargroup.clone()),
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render,
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);
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// Render a barchart with multiple groups
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group.bench_with_input(
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BenchmarkId::new("render_grouped", data_count),
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&BarChart::default()
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// We call `data` multiple time to add multiple groups.
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// This is not a duplicated call.
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.data(bargroup.clone())
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.data(bargroup.clone())
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.data(bargroup.clone()),
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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 widget in a classical size buffer
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fn render(bencher: &mut Bencher, barchart: &BarChart) {
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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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|| barchart.clone(),
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|bench_barchart| {
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bench_barchart.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, barchart);
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