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Cả thế giới là Rust
77c3498014
* feat(dd): add comprehensive benchmark suite for O_DIRECT optimization - Create dd's first benchmark suite using divan framework - Benchmark various block sizes (4K, 8K, 64K, 1M) to measure performance - Test different dd scenarios: default, partial copy, skip, seek operations - Measure impact of separate input/output block sizes - All benchmarks use status=none to avoid output noise - Benchmarks verify the O_DIRECT buffer alignment optimization - Follows existing uutils benchmark patterns and conventions * bench(dd): increase dataset sizes for consistent timing Increase benchmark dataset sizes to achieve consistent 100-300ms timing: - dd_copy_default: 16 -> 32 MB - dd_copy_4k_blocks: 16 -> 24 MB - dd_copy_64k_blocks: 16 -> 64 MB - dd_copy_1m_blocks: 16 -> 128 MB - dd_copy_separate_blocks: 16 -> 48 MB - dd_copy_partial: 16 -> 32 MB - dd_copy_with_skip: 16 -> 48 MB - dd_copy_with_seek: 16 -> 48 MB - dd_copy_8k_blocks: 16 -> 32 MB This ensures stable, repeatable benchmark measurements across different systems. --------- Co-authored-by: Sylvestre Ledru <sylvestre@debian.org>