## About benchmark data

The benchmark chart supposes `//website/data.json` has the signature of
`BenchmarkData[]` where `BenchmarkData` is defined like the below:

```typescript
interface ExecTimeData {
  mean: number;
  stddev: number;
  user: number;
  system: number;
  min: number;
  max: number;
}

interface BenchmarkData {
  created_at: string;
  sha1: string;
  binary_size?: number;
  benchmark: {
    [key: string]: ExecTimeData;
  };
}
```