DioCrafts
fd5808c157
Decode JPEGs at the smallest DCT scale (1/8·1/4·1/2·1/1) whose long axis is still ≥ the largest needed thumbnail (800px), via jpeg-decoder, instead of a full-resolution decode through the image crate. The full-res bitmap — the dominant time and RAM cost — is never materialised. PNG/GIF/WebP and unusual JPEG colour spaces (CMYK / 16-bit grey) fall back to a full decode. Extracts the shared decode + EXIF-orientation logic into decode_oriented(), removing the duplication that existed between render_thumbnail_from_data and render_all_thumbnails_from_data. Measured on 14 cores (see benches/BASELINE.md): - render_all 1.8-2.0× faster (12MP 111->61ms, 48MP 398->203ms) - peak heap 5.5-14.8× lower, now decoupled from source MP (~18-25MB regardless) - saturated throughput 3-3.6× (parallel efficiency 4.9×->8.5×) - quality SSIM 0.987-0.999 (>=0.98 gate), PSNR 47-55dB Also adds the Phase 0 benchmark harness (gated behind the `bench` feature, zero prod impact): deterministic image corpus (src/bench_support.rs), criterion latency bench (benches/thumbnails.rs), and a peak-RAM/throughput/SSIM harness (examples/bench_thumbnails_mem.rs). Baseline + before/after in benches/BASELINE.md. Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
121 lines
2.1 KiB
Plaintext
121 lines
2.1 KiB
Plaintext
# Generated by Cargo
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/target/
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**/target/
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# Processed static assets (generated by build.rs in release mode)
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/static-dist/
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# Built plugin bundles (just plugin-example-zip)
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/dist/
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# Remove Cargo.lock from gitignore if creating an executable, leave it for libraries
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# More information here https://doc.rust-lang.org/cargo/guide/cargo-toml-vs-cargo-lock.html
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# Cargo.lock
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# These are backup files generated by rustfmt
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**/*.rs.bk
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# MSVC Windows builds of rustc generate these, which store debugging information
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*.pdb
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# Rust debug symbols
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*.dSYM/
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*.su
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*.idb
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# Build cache (keep .cargo/config.toml for project build settings, keep audit config)
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.cargo/*
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!.cargo/config.toml
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!.cargo/audit.toml
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# temporary file to tools
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tmp/
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# Visual Studio Code directory
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.vscode/
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# JetBrains IDEs
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.idea/
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# MacOS specific
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.DS_Store
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.AppleDouble
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.LSOverride
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# Linux specific
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*~
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.directory
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.Trash-*
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# Windows specific
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Thumbs.db
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ehthumbs.db
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Desktop.ini
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# Node.js (if used for frontend)
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node_modules/
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npm-debug.log
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# Environment variables
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.env
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.env.local
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.env.development.local
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.env.test.local
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.env.production.local
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# Docker Compose local overrides (e.g. dev-only bind mounts)
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docker-compose.override.yml
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# Log files
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*.log
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logs/
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# Storage data (user files, blobs — never commit)
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storage/
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# TLS certificates and private keys — NEVER commit
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*.pem
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*.key
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*.p12
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*.pfx
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*.crt
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*.csr
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# Temporary files
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*.tmp
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*.bak
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*.swp
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*.swo
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nohup.out
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# Generated files (OpenAPI spec, etc.)
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resources/gen/
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# Helm chart dependencies
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charts/*/charts/*
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# Playwright
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tests/e2e/node_modules/
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tests/e2e/test-results/
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tests/e2e/blob-report/
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tests/e2e/playwright/.cache/
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tests/e2e/playwright/.auth/
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# Test fixtures generated on-the-fly by tests/api/run.sh
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tests/fixtures/chunk-over-cap-*.bin
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wasm/oxicloud-hash/target/
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# devenv / direnv
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.devenv/
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.direnv/
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.devenv-state/
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# K6 load-test raw run outputs and per-run storage (baseline is committed)
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tests/load/results/*.json
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tests/load/storage/
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# Phase 0 perf-bench corpus — generated deterministically on first
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# `cargo bench --features bench`; drop real photos here (same filenames) to
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# benchmark against real data. (target/ already ignored, covers the JSON dump.)
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benches/corpus/
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