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https://github.com/ratatui-org/ratatui
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2e71c1874e
The `vec![]` macro is highly optimized by the Rust team and shorter. Don't do it manually. This change is mainly cleaner code. The only production code that uses this is `Terminal::with_options` and `Terminal::insert_before` so it's not performance relevant on every render.
63 lines
1.9 KiB
Rust
63 lines
1.9 KiB
Rust
use criterion::{criterion_group, criterion_main, BatchSize, Bencher, Criterion};
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use ratatui::{
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buffer::Buffer,
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layout::{Alignment, Rect},
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widgets::{
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block::{Position, Title},
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Block, Borders, Padding, Widget,
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},
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};
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/// Benchmark for rendering a block.
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fn block(c: &mut Criterion) {
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let mut group = c.benchmark_group("block");
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for (width, height) in [
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(100, 50), // vertically split screen
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(200, 50), // 1080p fullscreen with medium font
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(256, 256), // Max sized area
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] {
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let buffer_size = Rect::new(0, 0, width, height);
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// Render an empty block
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group.bench_with_input(
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format!("render_empty/{width}x{height}"),
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&Block::new(),
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|b, block| render(b, block, buffer_size),
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);
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// Render with all features
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group.bench_with_input(
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format!("render_all_feature/{width}x{height}"),
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&Block::new()
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.borders(Borders::ALL)
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.title("test title")
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.title(
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Title::from("bottom left title")
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.alignment(Alignment::Right)
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.position(Position::Bottom),
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)
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.padding(Padding::new(5, 5, 2, 2)),
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|b, block| render(b, block, buffer_size),
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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, block: &Block, size: Rect) {
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let mut buffer = Buffer::empty(size);
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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-org/ratatui/pull/377.
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bencher.iter_batched(
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|| block.to_owned(),
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|bench_block| {
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bench_block.render(buffer.area, &mut buffer);
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},
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BatchSize::SmallInput,
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);
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}
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criterion_group!(benches, block);
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criterion_main!(benches);
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