🛠️ Changes

groups can have names

:::js
group(name, () => {
  ...
});

• math
-------------------------------------------
1 + 1                         87.43 ps/iter
                       (51.03 ps … 9.83 ns)

charts/visualizations can be nested and combined

:::js
summary(() => {
  barplot(() => {
    bench(...);
  });

  barplot(() => { ... });
});

------------------------------------------- -------------------------------
1 + 1                        105.54 ps/iter  91.55 ps        █  █           !
                       (61.04 ps … 1.83 µs) 122.07 ps ▁▁▁▁▁▁▁█▁▁█▁▁▁▁▁▁▄▁▁▂
Date.now()                    39.61 ns/iter  28.01 ns █                    
                       (27.83 ns … 3.19 µs) 153.12 ns █▁▃▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁

                             ┌                                            ┐
                       1 + 1 ┤ 105.54 ps
                  Date.now() ┤■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■ 39.61 ns
                             └                                            ┘

summary
  1 + 1
   375.26x faster than Date.now()

------------------------------------------- -------------------------------
2 + 2                        117.75 ps/iter  91.55 ps         █   ▄         !
                       (61.04 ps … 3.69 µs) 112.06 ps ▁▁▁▁▁▁▁▁█▁▁▁█▁▁▁▁▁▁▁▁
3 + 3                        126.97 ps/iter  91.55 ps        █  █           !
                       (61.04 ps … 4.23 µs) 122.07 ps ▁▁▁▁▁▁▁█▁▁█▁▁▁▁▁▁▄▁▁▂

                             ┌                                            ┐
                       2 + 2 ┤ 117.75 ps
                       3 + 3 ┤■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■ 126.97 ps
                             └                                            ┘

summary
  2 + 2
   1.08x faster than 3 + 3

other notable changes

• support for detecting webcontainers
• benchmark names now have 28 chars of space
• optimized amount of ansi codes outputted in some charts

🚀 New Features

benchmark names can be highlighted

:::js
bench(...).highlight('red');

markdown table format

:::js
await run({ format: 'markdown' });

clk: ~3.17 GHz cpu: Apple M2 Pro runtime: bun 1.1.26 (arm64-darwin)

option to fine tune garbage collection behavior

:::js
// runs gc before each iteration 
bench(...).gc('inner');