Attribute Macro compare 

#[compare]

Define a comparison group for multiple benchmarks

Example

#[flux::compare(
    id = "parser_showdown",
    title = "JSON Parser Comparison",
    benchmarks = ["bench_serde", "bench_simd_json", "bench_sonic", "bench_jiter", "bench_yyjson"],
    baseline = "bench_serde",
    metric = "mean"
)]
struct ParserComparison;

This creates a comparison group that will:

• Display all benchmarks in a comparison table
• Compute speedup ratios vs the baseline
• Generate data for comparison charts