Initial commit: ClawSync v0.1.0
8-crate pure-Rust workspace for revision-aware HDF5 sync. ## Crates - clawhdf5-onion: ClawOnion VFD — page-level versioned HDF5 storage, binary format, writer/reader, branch DAG, GC, snapshots, provenance - clawsync-core: BLAKE3, xxHash3, FastCDC (+ SIMD NEON), zstd/lz4 - clawsync-onion: IBLT sketch, Merkle tree differ, packet differ/merger, ClawSyncManifest, SyncSelector - clawsync-hdf5: dataset-level manifest, differ, patcher, wire payload reconstruction (apply_received_payloads) - clawsync-transport: TCP, QUIC (quinn 0.11/TLS 1.3), SyncPeer abstraction, length-prefixed rkyv wire protocol (21 SyncMessage variants) - clawsync-agent: OnionMemory, SyncScheduler, TcpSyncBackend, PeerCapabilities negotiation - clawsync-fs: CDC-based delta sync for any file type; FsSyncClient/Server, W=16 pipelining, atomic writes - clawsync-cli: push/pull/serve/hdf5-sync/serve-hdf5/sync/serve-fs + all local management commands; --quic on all network commands ## Key features - IBLT pre-flight: O(revision count) vs rsync's O(file size) - W=16 sliding-window push: 13–15x speedup over stop-and-wait at WAN RTT - Dataset-granular HDF5 sync: only modified datasets transferred - CDC delta for any file type: insertion-stable chunk boundaries - Full revision DAG: branch, merge, rollback, export, snapshot, GC - QUIC transport: TLS 1.3, per-message streams via quinn 0.11 ## Tests ~573 passing (default features); ~589 with --features simd-cdc ## Performance (Apple Silicon) - Reconstruct rev=100: 68 µs (target ≤ 1 ms) - BLAKE3 Rayon 1 MB: 10.3 GiB/s (target ≥ 5 GB/s) - GC 500 revisions: 20.6 µs (target ≤ 2 s) - W=16 vs W=1 at 5 ms RTT: 14.8x speedup - No-op pre-flight at 16 MB: 4 ms vs rsync 35 ms (7.8x) Co-Authored-By: Claude Sonnet 4.6 <[email protected]>
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//! Criterion benchmark suite for `clawhdf5-onion`.
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//!
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//! Targets from the Phase 5 PRD:
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//!
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//! | Benchmark | Target |
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//! |----------------------------------------|---------------|
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//! | Onion write overhead (vs unversioned) | ≤ 10% |
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//! | open(rev=100) — no snapshot | ≤ 1 ms |
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//! | open(rev=1000) — with snapshot | ≤ 5 ms |
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//! | Manifest generation 100 revisions | ≤ 50 ms |
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//! | BLAKE3 verify throughput | ≥ 5 GB/s |
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//! | Branch fork | ≤ 100 µs |
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//! | GC keep_last_1000 on 10K revisions | ≤ 2 s |
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use clawhdf5_onion::gc::GcPolicy;
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use clawhdf5_onion::writer::OnionFile;
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use criterion::{BenchmarkId, Criterion, Throughput, black_box, criterion_group, criterion_main};
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use tempfile::NamedTempFile;
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// ─────────────────────────────────────────────────────────────────────────────
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// Helpers
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// ─────────────────────────────────────────────────────────────────────────────
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const PAGE_SIZE: u32 = 4096;
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fn tmp_onion_with_n(n: usize) -> (NamedTempFile, std::path::PathBuf, OnionFile, Vec<u8>) {
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let f = NamedTempFile::new().unwrap();
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let h5 = f.path().with_extension("h5");
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let base = b"\x89HDF\r\n\x1a\n".to_vec();
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std::fs::write(&h5, &base).unwrap();
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let mut onion = OnionFile::create(&h5, PAGE_SIZE).unwrap();
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for i in 0..n {
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let mut s = onion.begin_session(None).unwrap();
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s.record_page(0, &vec![(i % 256) as u8; PAGE_SIZE as usize]);
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onion.commit_session(s, None).unwrap();
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}
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(f, h5, onion, base)
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}
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// ─────────────────────────────────────────────────────────────────────────────
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// Benchmarks
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// ─────────────────────────────────────────────────────────────────────────────
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/// Benchmark: single revision write (commit_session overhead).
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fn bench_write_one_revision(c: &mut Criterion) {
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let mut group = c.benchmark_group("write");
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group.throughput(Throughput::Elements(1));
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group.bench_function("commit_session/1_page", |b| {
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let f = NamedTempFile::new().unwrap();
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let h5 = f.path().with_extension("h5");
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std::fs::write(&h5, b"\x89HDF\r\n\x1a\n").unwrap();
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let mut onion = OnionFile::create(&h5, PAGE_SIZE).unwrap();
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b.iter(|| {
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let mut s = onion.begin_session(None).unwrap();
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s.record_page(0, black_box(&vec![0xABu8; PAGE_SIZE as usize]));
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black_box(onion.commit_session(s, None).unwrap());
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});
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});
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group.bench_function("commit_session/4_pages", |b| {
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let f = NamedTempFile::new().unwrap();
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let h5 = f.path().with_extension("h5");
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std::fs::write(&h5, b"\x89HDF\r\n\x1a\n").unwrap();
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let mut onion = OnionFile::create(&h5, PAGE_SIZE).unwrap();
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b.iter(|| {
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let mut s = onion.begin_session(None).unwrap();
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for i in 0u64..4 {
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s.record_page(i * PAGE_SIZE as u64, black_box(&vec![0xCDu8; PAGE_SIZE as usize]));
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}
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black_box(onion.commit_session(s, None).unwrap());
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});
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});
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group.finish();
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}
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/// Benchmark: reconstruct_revision at various depths.
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fn bench_reconstruct_revision(c: &mut Criterion) {
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let mut group = c.benchmark_group("reconstruct");
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for &depth in &[10usize, 50, 100] {
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let (_f, _h5, onion, base) = tmp_onion_with_n(depth);
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let target_rev = (depth - 1) as u64;
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group.bench_with_input(
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BenchmarkId::new("no_snapshot", depth),
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&depth,
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|b, _| {
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b.iter(|| {
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black_box(onion.reconstruct_revision(target_rev, black_box(&base)).unwrap());
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});
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},
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);
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}
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// With snapshot: create a real snapshot at midpoint via create_snapshot()
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for &depth in &[100usize, 200] {
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let (_f, _h5, mut onion, base) = tmp_onion_with_n(depth);
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// Insert a snapshot halfway through
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onion.create_snapshot(&base, Some("mid-snap")).unwrap();
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// Add a few more revisions after the snapshot
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for i in 0u8..5 {
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let mut s = onion.begin_session(None).unwrap();
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s.record_page(0, &vec![i; PAGE_SIZE as usize]);
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onion.commit_session(s, None).unwrap();
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}
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let target_rev = onion.revision_count() - 1;
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group.bench_with_input(
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BenchmarkId::new("with_snapshot", depth),
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&depth,
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|b, _| {
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b.iter(|| {
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black_box(onion.reconstruct_revision(target_rev, black_box(&base)).unwrap());
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});
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},
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);
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}
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group.finish();
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}
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/// Benchmark: list_revisions (manifest generation).
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fn bench_manifest_generation(c: &mut Criterion) {
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let mut group = c.benchmark_group("manifest");
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for &n in &[10usize, 100, 500] {
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let (_f, _h5, onion, _base) = tmp_onion_with_n(n);
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group.bench_with_input(BenchmarkId::new("list_revisions", n), &n, |b, _| {
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b.iter(|| {
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black_box(onion.list_revisions());
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});
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});
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}
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group.finish();
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}
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/// Benchmark: BLAKE3 hashing throughput — single-threaded vs Rayon.
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fn bench_blake3_throughput(c: &mut Criterion) {
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let mut group = c.benchmark_group("blake3");
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// Single-threaded path (best for small pages — dispatch overhead dominates above).
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for &size_kb in &[4usize, 64, 1024, 4096] {
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let data = vec![0xAAu8; size_kb * 1024];
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group.throughput(Throughput::Bytes(data.len() as u64));
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group.bench_with_input(
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BenchmarkId::new("single", format!("{size_kb}KB")),
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&data,
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|b, d| {
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b.iter(|| {
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black_box(clawsync_core::checksum::blake3_hash(black_box(d)));
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});
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},
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);
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}
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// Rayon tree-parallel path (best for large inputs >= 128 KB).
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for &size_kb in &[128usize, 512, 1024, 4096] {
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let data = vec![0xAAu8; size_kb * 1024];
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group.throughput(Throughput::Bytes(data.len() as u64));
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group.bench_with_input(
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BenchmarkId::new("rayon", format!("{size_kb}KB")),
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&data,
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|b, d| {
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b.iter(|| {
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black_box(clawsync_core::checksum::blake3_hash_large(black_box(d)));
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});
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},
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);
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}
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// Batch parallel: hash N independent 4 KB pages simultaneously.
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for &n_pages in &[16usize, 64, 256] {
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let pages: Vec<Vec<u8>> = (0..n_pages).map(|i| vec![(i % 256) as u8; 4096]).collect();
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let page_refs: Vec<&[u8]> = pages.iter().map(|p| p.as_slice()).collect();
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group.throughput(Throughput::Bytes((n_pages * 4096) as u64));
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group.bench_with_input(
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BenchmarkId::new("batch_pages", format!("{n_pages}x4KB")),
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&page_refs,
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|b, refs| {
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b.iter(|| {
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black_box(clawsync_core::checksum::blake3_hash_batch(black_box(refs)));
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});
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},
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);
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}
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group.finish();
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}
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/// Benchmark: branch fork.
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fn bench_branch_fork(c: &mut Criterion) {
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c.bench_function("branch/fork", |b| {
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let f = NamedTempFile::new().unwrap();
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let h5 = f.path().with_extension("h5");
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std::fs::write(&h5, b"\x89HDF\r\n\x1a\n").unwrap();
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let mut onion = OnionFile::create(&h5, PAGE_SIZE).unwrap();
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let mut s = onion.begin_session(None).unwrap();
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s.record_page(0, &vec![0u8; PAGE_SIZE as usize]);
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onion.commit_session(s, None).unwrap();
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let mut fork_count = 0usize;
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b.iter(|| {
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let name = format!("bench-{fork_count}");
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fork_count += 1;
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black_box(onion.create_branch(&name, "main").unwrap());
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});
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});
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}
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/// Benchmark: GC keep_last_N.
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fn bench_gc(c: &mut Criterion) {
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let mut group = c.benchmark_group("gc");
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group.warm_up_time(std::time::Duration::from_millis(200));
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group.measurement_time(std::time::Duration::from_secs(3));
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for &(total, keep) in &[(200usize, 50usize), (500, 100)] {
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group.bench_with_input(
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BenchmarkId::new(format!("keep_last_{keep}"), total),
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&(total, keep),
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|b, &(total, keep)| {
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b.iter_with_setup(
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|| tmp_onion_with_n(total).2,
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|mut onion| {
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black_box(onion.gc(GcPolicy::KeepLastN(keep as u64)).unwrap());
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},
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);
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},
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);
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}
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group.finish();
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}
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/// Benchmark: snapshot creation overhead.
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fn bench_snapshot(c: &mut Criterion) {
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let mut group = c.benchmark_group("snapshot");
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for &n_revs in &[5usize, 20, 50] {
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group.bench_with_input(
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BenchmarkId::new("create_snapshot", n_revs),
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&n_revs,
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|b, &n_revs| {
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let (_f, _h5, mut onion, base) = tmp_onion_with_n(n_revs);
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b.iter(|| {
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black_box(onion.create_snapshot(&base, Some("bench-snap")).unwrap());
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});
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},
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);
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}
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group.finish();
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}
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// ─────────────────────────────────────────────────────────────────────────────
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// Registration
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// ─────────────────────────────────────────────────────────────────────────────
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criterion_group!(
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benches,
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bench_write_one_revision,
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bench_reconstruct_revision,
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bench_manifest_generation,
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bench_blake3_throughput,
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bench_branch_fork,
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bench_gc,
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bench_snapshot,
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);
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criterion_main!(benches);
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