zstd: Faster CRC checking/skipping #696
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Decoder.nextBlock no longer calls the checksum finalizer if not necessary.
greatroar
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Nov 23, 2022
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Nov 25, 2022
checkCRC is now a uint32 with a boolean indicating whether it needs checking. This makes the comparison shorter and avoids some allocations. Benchmark results on older i7: name old speed new speed delta Decoder_DecoderSmall/kppkn.gtb.zst/buffered-8 458MB/s ± 0% 458MB/s ± 0% ~ (p=0.139 n=9+8) Decoder_DecoderSmall/kppkn.gtb.zst/unbuffered-8 568MB/s ± 2% 566MB/s ± 4% ~ (p=0.971 n=10+10) Decoder_DecoderSmall/geo.protodata.zst/buffered-8 1.19GB/s ± 0% 1.20GB/s ± 1% ~ (p=0.051 n=9+10) Decoder_DecoderSmall/geo.protodata.zst/unbuffered-8 832MB/s ± 2% 839MB/s ± 2% ~ (p=0.156 n=10+9) Decoder_DecoderSmall/plrabn12.txt.zst/buffered-8 352MB/s ± 0% 352MB/s ± 0% ~ (p=0.148 n=10+10) Decoder_DecoderSmall/plrabn12.txt.zst/unbuffered-8 534MB/s ± 7% 542MB/s ± 3% ~ (p=0.315 n=10+10) Decoder_DecoderSmall/lcet10.txt.zst/buffered-8 422MB/s ± 0% 422MB/s ± 0% ~ (p=0.408 n=8+10) Decoder_DecoderSmall/lcet10.txt.zst/unbuffered-8 606MB/s ± 9% 618MB/s ± 7% ~ (p=0.393 n=10+10) Decoder_DecoderSmall/asyoulik.txt.zst/buffered-8 362MB/s ± 5% 367MB/s ± 0% +1.44% (p=0.026 n=9+10) Decoder_DecoderSmall/asyoulik.txt.zst/unbuffered-8 449MB/s ± 3% 463MB/s ± 4% +3.28% (p=0.003 n=10+9) Decoder_DecoderSmall/alice29.txt.zst/buffered-8 361MB/s ± 0% 361MB/s ± 0% ~ (p=0.888 n=8+9) Decoder_DecoderSmall/alice29.txt.zst/unbuffered-8 569MB/s ± 8% 577MB/s ± 2% ~ (p=0.541 n=9+8) Decoder_DecoderSmall/html_x_4.zst/buffered-8 2.46GB/s ± 1% 2.46GB/s ± 0% ~ (p=0.720 n=10+9) Decoder_DecoderSmall/html_x_4.zst/unbuffered-8 1.67GB/s ± 6% 1.65GB/s ± 4% ~ (p=0.315 n=10+9) Decoder_DecoderSmall/paper-100k.pdf.zst/buffered-8 3.87GB/s ± 0% 3.87GB/s ± 0% ~ (p=0.497 n=10+9) Decoder_DecoderSmall/paper-100k.pdf.zst/unbuffered-8 1.84GB/s ± 7% 1.83GB/s ± 2% ~ (p=0.912 n=10+10) Decoder_DecoderSmall/fireworks.jpeg.zst/buffered-8 8.63GB/s ± 1% 8.61GB/s ± 0% ~ (p=0.063 n=10+10) Decoder_DecoderSmall/fireworks.jpeg.zst/unbuffered-8 3.34GB/s ± 3% 3.32GB/s ± 5% ~ (p=0.579 n=10+10) Decoder_DecoderSmall/urls.10K.zst/buffered-8 586MB/s ± 1% 584MB/s ± 0% -0.46% (p=0.005 n=9+7) Decoder_DecoderSmall/urls.10K.zst/unbuffered-8 877MB/s ± 2% 879MB/s ± 2% ~ (p=0.796 n=10+10) Decoder_DecoderSmall/html.zst/buffered-8 961MB/s ± 0% 963MB/s ± 0% +0.19% (p=0.004 n=9+9) Decoder_DecoderSmall/html.zst/unbuffered-8 709MB/s ± 1% 715MB/s ± 3% ~ (p=0.203 n=8+10) Decoder_DecoderSmall/comp-data.bin.zst/buffered-8 407MB/s ± 0% 405MB/s ± 0% -0.47% (p=0.000 n=10+8) Decoder_DecoderSmall/comp-data.bin.zst/unbuffered-8 152MB/s ± 3% 151MB/s ± 4% ~ (p=0.853 n=10+10) name old alloc/op new alloc/op delta Decoder_DecoderSmall/kppkn.gtb.zst/buffered-8 54.0B ± 0% 54.0B ± 0% ~ (all equal) Decoder_DecoderSmall/kppkn.gtb.zst/unbuffered-8 4.57kB ± 3% 4.57kB ± 3% ~ (p=0.985 n=10+10) Decoder_DecoderSmall/geo.protodata.zst/buffered-8 49.0B ± 0% 49.0B ± 0% ~ (all equal) Decoder_DecoderSmall/geo.protodata.zst/unbuffered-8 4.47kB ± 0% 4.47kB ± 1% ~ (p=0.481 n=10+10) Decoder_DecoderSmall/plrabn12.txt.zst/buffered-8 68.6B ± 2% 68.0B ± 0% ~ (p=0.173 n=10+9) Decoder_DecoderSmall/plrabn12.txt.zst/unbuffered-8 4.64kB ± 5% 4.62kB ± 4% ~ (p=1.000 n=10+10) Decoder_DecoderSmall/lcet10.txt.zst/buffered-8 63.0B ± 0% 63.0B ± 0% ~ (all equal) Decoder_DecoderSmall/lcet10.txt.zst/unbuffered-8 4.65kB ± 3% 4.56kB ± 3% -1.94% (p=0.014 n=10+10) Decoder_DecoderSmall/asyoulik.txt.zst/buffered-8 53.0B ± 0% 53.0B ± 0% ~ (all equal) Decoder_DecoderSmall/asyoulik.txt.zst/unbuffered-8 4.49kB ± 1% 4.45kB ± 2% -0.93% (p=0.006 n=9+9) Decoder_DecoderSmall/alice29.txt.zst/buffered-8 77.9B ± 1% 77.5B ± 1% ~ (p=0.176 n=9+8) Decoder_DecoderSmall/alice29.txt.zst/unbuffered-8 4.52kB ± 2% 4.48kB ± 1% -0.94% (p=0.003 n=10+9) Decoder_DecoderSmall/html_x_4.zst/buffered-8 53.0B ± 6% 56.0B ± 0% ~ (p=0.059 n=10+8) Decoder_DecoderSmall/html_x_4.zst/unbuffered-8 4.46kB ± 0% 4.48kB ± 2% ~ (p=1.000 n=8+10) Decoder_DecoderSmall/paper-100k.pdf.zst/buffered-8 48.0B ± 0% 48.0B ± 0% ~ (all equal) Decoder_DecoderSmall/paper-100k.pdf.zst/unbuffered-8 4.46kB ± 0% 4.43kB ± 0% -0.72% (p=0.000 n=10+10) Decoder_DecoderSmall/fireworks.jpeg.zst/buffered-8 48.0B ± 0% 48.0B ± 0% ~ (all equal) Decoder_DecoderSmall/fireworks.jpeg.zst/unbuffered-8 4.07kB ± 0% 4.04kB ± 0% -0.79% (p=0.000 n=9+10) Decoder_DecoderSmall/urls.10K.zst/buffered-8 66.0B ± 0% 66.0B ± 0% ~ (all equal) Decoder_DecoderSmall/urls.10K.zst/unbuffered-8 4.60kB ± 3% 4.53kB ± 5% ~ (p=0.052 n=10+10) Decoder_DecoderSmall/html.zst/buffered-8 49.0B ± 0% 49.0B ± 0% ~ (all equal) Decoder_DecoderSmall/html.zst/unbuffered-8 4.47kB ± 0% 4.46kB ± 1% ~ (p=0.165 n=8+10) Decoder_DecoderSmall/comp-data.bin.zst/buffered-8 48.0B ± 0% 48.0B ± 0% ~ (all equal) Decoder_DecoderSmall/comp-data.bin.zst/unbuffered-8 4.44kB ± 0% 4.44kB ± 0% ~ (p=0.171 n=10+10) name old allocs/op new allocs/op delta Decoder_DecoderSmall/kppkn.gtb.zst/buffered-8 1.00 ± 0% 1.00 ± 0% ~ (all equal) Decoder_DecoderSmall/kppkn.gtb.zst/unbuffered-8 40.0 ± 0% 32.0 ± 0% -20.00% (p=0.000 n=10+10) Decoder_DecoderSmall/geo.protodata.zst/buffered-8 1.00 ± 0% 1.00 ± 0% ~ (all equal) Decoder_DecoderSmall/geo.protodata.zst/unbuffered-8 40.0 ± 0% 32.0 ± 0% -20.00% (p=0.000 n=10+10) Decoder_DecoderSmall/plrabn12.txt.zst/buffered-8 1.00 ± 0% 1.00 ± 0% ~ (all equal) Decoder_DecoderSmall/plrabn12.txt.zst/unbuffered-8 40.0 ± 0% 32.0 ± 0% -20.00% (p=0.000 n=10+10) Decoder_DecoderSmall/lcet10.txt.zst/buffered-8 1.00 ± 0% 1.00 ± 0% ~ (all equal) Decoder_DecoderSmall/lcet10.txt.zst/unbuffered-8 40.0 ± 0% 32.0 ± 0% -20.00% (p=0.000 n=10+10) Decoder_DecoderSmall/asyoulik.txt.zst/buffered-8 1.00 ± 0% 1.00 ± 0% ~ (all equal) Decoder_DecoderSmall/asyoulik.txt.zst/unbuffered-8 40.0 ± 0% 32.0 ± 0% -20.00% (p=0.000 n=10+10) Decoder_DecoderSmall/alice29.txt.zst/buffered-8 1.00 ± 0% 1.00 ± 0% ~ (all equal) Decoder_DecoderSmall/alice29.txt.zst/unbuffered-8 40.0 ± 0% 32.0 ± 0% -20.00% (p=0.000 n=10+10) Decoder_DecoderSmall/html_x_4.zst/buffered-8 1.00 ± 0% 1.00 ± 0% ~ (all equal) Decoder_DecoderSmall/html_x_4.zst/unbuffered-8 40.0 ± 0% 32.0 ± 0% -20.00% (p=0.000 n=10+10) Decoder_DecoderSmall/paper-100k.pdf.zst/buffered-8 1.00 ± 0% 1.00 ± 0% ~ (all equal) Decoder_DecoderSmall/paper-100k.pdf.zst/unbuffered-8 40.0 ± 0% 32.0 ± 0% -20.00% (p=0.000 n=10+10) Decoder_DecoderSmall/fireworks.jpeg.zst/buffered-8 1.00 ± 0% 1.00 ± 0% ~ (all equal) Decoder_DecoderSmall/fireworks.jpeg.zst/unbuffered-8 32.0 ± 0% 24.0 ± 0% -25.00% (p=0.000 n=10+10) Decoder_DecoderSmall/urls.10K.zst/buffered-8 1.00 ± 0% 1.00 ± 0% ~ (all equal) Decoder_DecoderSmall/urls.10K.zst/unbuffered-8 40.0 ± 0% 32.0 ± 0% -20.00% (p=0.000 n=10+10) Decoder_DecoderSmall/html.zst/buffered-8 1.00 ± 0% 1.00 ± 0% ~ (all equal) Decoder_DecoderSmall/html.zst/unbuffered-8 40.0 ± 0% 32.0 ± 0% -20.00% (p=0.000 n=10+10) Decoder_DecoderSmall/comp-data.bin.zst/buffered-8 1.00 ± 0% 1.00 ± 0% ~ (all equal) Decoder_DecoderSmall/comp-data.bin.zst/unbuffered-8 32.0 ± 0% 32.0 ± 0% ~ (all equal) On a newer i5: name old speed new speed delta Decoder_DecoderSmall/kppkn.gtb.zst/buffered-16 730MB/s ± 2% 729MB/s ± 2% ~ (p=0.971 n=10+10) Decoder_DecoderSmall/kppkn.gtb.zst/unbuffered-16 1.16GB/s ± 5% 1.17GB/s ± 5% ~ (p=0.720 n=10+9) Decoder_DecoderSmall/geo.protodata.zst/buffered-16 2.45GB/s ± 2% 2.45GB/s ± 4% ~ (p=0.853 n=10+10) Decoder_DecoderSmall/geo.protodata.zst/unbuffered-16 2.47GB/s ± 1% 2.47GB/s ± 1% ~ (p=0.631 n=10+10) Decoder_DecoderSmall/plrabn12.txt.zst/buffered-16 520MB/s ± 1% 528MB/s ± 2% +1.58% (p=0.015 n=10+10) Decoder_DecoderSmall/plrabn12.txt.zst/unbuffered-16 1.15GB/s ±12% 1.18GB/s ± 5% ~ (p=0.393 n=10+10) Decoder_DecoderSmall/lcet10.txt.zst/buffered-16 615MB/s ± 2% 627MB/s ± 2% +1.80% (p=0.001 n=10+10) Decoder_DecoderSmall/lcet10.txt.zst/unbuffered-16 1.19GB/s ± 4% 1.20GB/s ± 5% ~ (p=0.684 n=10+10) Decoder_DecoderSmall/asyoulik.txt.zst/buffered-16 565MB/s ± 2% 572MB/s ± 2% ~ (p=0.075 n=10+10) Decoder_DecoderSmall/asyoulik.txt.zst/unbuffered-16 1.10GB/s ±10% 1.11GB/s ± 9% ~ (p=0.481 n=10+10) Decoder_DecoderSmall/alice29.txt.zst/buffered-16 560MB/s ± 1% 567MB/s ± 2% +1.22% (p=0.008 n=10+9) Decoder_DecoderSmall/alice29.txt.zst/unbuffered-16 928MB/s ± 3% 919MB/s ± 3% ~ (p=0.218 n=10+10) Decoder_DecoderSmall/html_x_4.zst/buffered-16 4.12GB/s ± 2% 4.19GB/s ± 2% +1.75% (p=0.008 n=9+10) Decoder_DecoderSmall/html_x_4.zst/unbuffered-16 4.79GB/s ± 2% 4.77GB/s ± 2% ~ (p=0.542 n=10+10) Decoder_DecoderSmall/paper-100k.pdf.zst/buffered-16 6.02GB/s ± 2% 5.96GB/s ± 2% ~ (p=0.123 n=10+10) Decoder_DecoderSmall/paper-100k.pdf.zst/unbuffered-16 5.78GB/s ± 1% 5.81GB/s ± 1% ~ (p=0.123 n=10+10) Decoder_DecoderSmall/fireworks.jpeg.zst/buffered-16 11.5GB/s ± 2% 11.3GB/s ± 2% -1.77% (p=0.005 n=10+10) Decoder_DecoderSmall/fireworks.jpeg.zst/unbuffered-16 9.83GB/s ± 1% 9.80GB/s ± 1% ~ (p=0.353 n=10+10) Decoder_DecoderSmall/urls.10K.zst/buffered-16 845MB/s ± 1% 845MB/s ± 2% ~ (p=0.796 n=10+10) Decoder_DecoderSmall/urls.10K.zst/unbuffered-16 1.46GB/s ± 2% 1.46GB/s ± 3% ~ (p=0.971 n=10+10) Decoder_DecoderSmall/html.zst/buffered-16 1.80GB/s ± 2% 1.84GB/s ± 2% +2.11% (p=0.006 n=9+8) Decoder_DecoderSmall/html.zst/unbuffered-16 2.16GB/s ± 1% 2.18GB/s ± 1% +0.97% (p=0.019 n=10+10) Decoder_DecoderSmall/comp-data.bin.zst/buffered-16 702MB/s ± 3% 708MB/s ± 1% ~ (p=0.165 n=10+10) Decoder_DecoderSmall/comp-data.bin.zst/unbuffered-16 609MB/s ± 1% 608MB/s ± 1% ~ (p=0.150 n=9+10) name old alloc/op new alloc/op delta Decoder_DecoderSmall/kppkn.gtb.zst/buffered-16 55.0B ± 0% 55.0B ± 0% ~ (all equal) Decoder_DecoderSmall/kppkn.gtb.zst/unbuffered-16 4.51kB ± 1% 4.47kB ± 1% -0.93% (p=0.001 n=10+9) Decoder_DecoderSmall/geo.protodata.zst/buffered-16 49.0B ± 0% 49.0B ± 0% ~ (all equal) Decoder_DecoderSmall/geo.protodata.zst/unbuffered-16 4.48kB ± 1% 4.44kB ± 0% -0.87% (p=0.000 n=10+10) Decoder_DecoderSmall/plrabn12.txt.zst/buffered-16 74.5B ± 1% 74.2B ± 2% ~ (p=0.450 n=10+10) Decoder_DecoderSmall/plrabn12.txt.zst/unbuffered-16 4.56kB ± 2% 4.53kB ± 2% ~ (p=0.306 n=10+10) Decoder_DecoderSmall/lcet10.txt.zst/buffered-16 67.5B ± 1% 67.0B ± 0% -0.74% (p=0.033 n=10+10) Decoder_DecoderSmall/lcet10.txt.zst/unbuffered-16 4.55kB ± 1% 4.50kB ± 1% -1.14% (p=0.000 n=9+10) Decoder_DecoderSmall/asyoulik.txt.zst/buffered-16 54.0B ± 0% 54.0B ± 0% ~ (all equal) Decoder_DecoderSmall/asyoulik.txt.zst/unbuffered-16 4.47kB ± 0% 4.44kB ± 0% -0.66% (p=0.000 n=9+10) Decoder_DecoderSmall/alice29.txt.zst/buffered-16 74.6B ± 6% 75.3B ± 7% ~ (p=0.883 n=10+10) Decoder_DecoderSmall/alice29.txt.zst/unbuffered-16 4.48kB ± 0% 4.45kB ± 1% -0.57% (p=0.005 n=7+9) Decoder_DecoderSmall/html_x_4.zst/buffered-16 54.0B ± 0% 52.4B ± 5% -2.96% (p=0.046 n=8+10) Decoder_DecoderSmall/html_x_4.zst/unbuffered-16 4.48kB ± 0% 4.46kB ± 0% -0.43% (p=0.016 n=10+9) Decoder_DecoderSmall/paper-100k.pdf.zst/buffered-16 48.0B ± 0% 48.0B ± 0% ~ (all equal) Decoder_DecoderSmall/paper-100k.pdf.zst/unbuffered-16 4.46kB ± 0% 4.43kB ± 0% -0.69% (p=0.000 n=10+10) Decoder_DecoderSmall/fireworks.jpeg.zst/buffered-16 48.0B ± 0% 48.0B ± 0% ~ (all equal) Decoder_DecoderSmall/fireworks.jpeg.zst/unbuffered-16 4.07kB ± 0% 4.04kB ± 0% -0.80% (p=0.000 n=7+9) Decoder_DecoderSmall/urls.10K.zst/buffered-16 71.4B ± 1% 71.6B ± 1% ~ (p=0.656 n=10+10) Decoder_DecoderSmall/urls.10K.zst/unbuffered-16 4.55kB ± 2% 4.53kB ± 2% ~ (p=0.529 n=10+10) Decoder_DecoderSmall/html.zst/buffered-16 49.0B ± 0% 49.0B ± 0% ~ (all equal) Decoder_DecoderSmall/html.zst/unbuffered-16 4.48kB ± 0% 4.44kB ± 0% -0.91% (p=0.000 n=10+9) Decoder_DecoderSmall/comp-data.bin.zst/buffered-16 48.0B ± 0% 48.0B ± 0% ~ (all equal) Decoder_DecoderSmall/comp-data.bin.zst/unbuffered-16 4.44kB ± 0% 4.44kB ± 0% ~ (p=0.897 n=10+10) allocs/op is the same as on the previous machine.
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Feb 1, 2023
…7575) This PR contains the following updates: | Package | Type | Update | Change | |---|---|---|---| | [github.com/klauspost/compress](https://togithub.com/klauspost/compress) | indirect | patch | `v1.15.11` -> `v1.15.15` | --- ### Release Notes <details> <summary>klauspost/compress</summary> ### [`v1.15.15`](https://togithub.com/klauspost/compress/releases/tag/v1.15.15) [Compare Source](https://togithub.com/klauspost/compress/compare/v1.15.14...v1.15.15) ##### What's Changed - zstd: Add delta encoding support by [@​greatroar](https://togithub.com/greatroar) in [https://github.com/klauspost/compress/pull/728](https://togithub.com/klauspost/compress/pull/728) - huff0: Reduce bounds checking by [@​greatroar](https://togithub.com/greatroar) in [https://github.com/klauspost/compress/pull/734](https://togithub.com/klauspost/compress/pull/734) - huff0: Assembler improvements by [@​greatroar](https://togithub.com/greatroar) in [https://github.com/klauspost/compress/pull/736](https://togithub.com/klauspost/compress/pull/736) - deflate: Improve level 7-9 by [@​klauspost](https://togithub.com/klauspost) in [https://github.com/klauspost/compress/pull/739](https://togithub.com/klauspost/compress/pull/739) - gzhttp: Add SuffixETag() and DropETag() options to prevent ETag collisions on compressed responses by [@​willbicks](https://togithub.com/willbicks) in [https://github.com/klauspost/compress/pull/740](https://togithub.com/klauspost/compress/pull/740) - zstd: Don't allocate dataStorage when using byteBuf by [@​klauspost](https://togithub.com/klauspost) in [https://github.com/klauspost/compress/pull/741](https://togithub.com/klauspost/compress/pull/741) - huff0: Speed up compression of short blocks by [@​greatroar](https://togithub.com/greatroar) in [https://github.com/klauspost/compress/pull/744](https://togithub.com/klauspost/compress/pull/744) - zstd: Handle dicts by pointer, always by [@​greatroar](https://togithub.com/greatroar) in [https://github.com/klauspost/compress/pull/743](https://togithub.com/klauspost/compress/pull/743) - fse: Optimize compression by [@​greatroar](https://togithub.com/greatroar) in [https://github.com/klauspost/compress/pull/745](https://togithub.com/klauspost/compress/pull/745) - Retract v1.14.1-v.1.14.3 by [@​klauspost](https://togithub.com/klauspost) in [https://github.com/klauspost/compress/pull/742](https://togithub.com/klauspost/compress/pull/742) ##### New Contributors - [@​willbicks](https://togithub.com/willbicks) made their first contribution in [https://github.com/klauspost/compress/pull/740](https://togithub.com/klauspost/compress/pull/740) **Full Changelog**: klauspost/compress@v1.15.14...v1.15.15 ### [`v1.15.14`](https://togithub.com/klauspost/compress/releases/tag/v1.15.14) [Compare Source](https://togithub.com/klauspost/compress/compare/v1.15.13...v1.15.14) #### What's Changed - flate: Improve speed in big stateless blocks. by [@​klauspost](https://togithub.com/klauspost) in [https://github.com/klauspost/compress/pull/718](https://togithub.com/klauspost/compress/pull/718) - zstd: Trigger BCE by switching on lengths by [@​greatroar](https://togithub.com/greatroar) in [https://github.com/klauspost/compress/pull/716](https://togithub.com/klauspost/compress/pull/716) - zstd: Shave some instructions off the amd64 asm by [@​greatroar](https://togithub.com/greatroar) in [https://github.com/klauspost/compress/pull/720](https://togithub.com/klauspost/compress/pull/720) - export NoGzipResponseWriter for custom ResponseWriter wrappers by [@​harshavardhana](https://togithub.com/harshavardhana) in [https://github.com/klauspost/compress/pull/722](https://togithub.com/klauspost/compress/pull/722) - s2: Add example for indexing and existing stream by [@​klauspost](https://togithub.com/klauspost) in [https://github.com/klauspost/compress/pull/723](https://togithub.com/klauspost/compress/pull/723) - tests: Tweak fuzz tests by [@​klauspost](https://togithub.com/klauspost) in [https://github.com/klauspost/compress/pull/719](https://togithub.com/klauspost/compress/pull/719) #### New Contributors - [@​harshavardhana](https://togithub.com/harshavardhana) made their first contribution in [https://github.com/klauspost/compress/pull/722](https://togithub.com/klauspost/compress/pull/722) **Full Changelog**: klauspost/compress@v1.15.13...v1.15.14 ### [`v1.15.13`](https://togithub.com/klauspost/compress/releases/tag/v1.15.13) [Compare Source](https://togithub.com/klauspost/compress/compare/v1.15.12...v1.15.13) #### What's Changed - zstd: Add MaxEncodedSize to encoder by [@​klauspost](https://togithub.com/klauspost) in [https://github.com/klauspost/compress/pull/691](https://togithub.com/klauspost/compress/pull/691) - zstd: Improve "best" end search by [@​klauspost](https://togithub.com/klauspost) in [https://github.com/klauspost/compress/pull/693](https://togithub.com/klauspost/compress/pull/693) - zstd: Replace bytes.Equal with smaller comparisons by [@​greatroar](https://togithub.com/greatroar) in [https://github.com/klauspost/compress/pull/695](https://togithub.com/klauspost/compress/pull/695) - zstd: Faster CRC checking/skipping by [@​greatroar](https://togithub.com/greatroar) in [https://github.com/klauspost/compress/pull/696](https://togithub.com/klauspost/compress/pull/696) - zstd: Rewrite matchLen to make it inlineable by [@​greatroar](https://togithub.com/greatroar) in [https://github.com/klauspost/compress/pull/701](https://togithub.com/klauspost/compress/pull/701) - zstd: Write table clearing in a way that the compiler recognizes by [@​greatroar](https://togithub.com/greatroar) in [https://github.com/klauspost/compress/pull/702](https://togithub.com/klauspost/compress/pull/702) - zstd: Use individual reset threshold by [@​klauspost](https://togithub.com/klauspost) in [https://github.com/klauspost/compress/pull/703](https://togithub.com/klauspost/compress/pull/703) - huff0: Check for zeros earlier in Scratch.countSimple by [@​greatroar](https://togithub.com/greatroar) in [https://github.com/klauspost/compress/pull/704](https://togithub.com/klauspost/compress/pull/704) - zstd: Improve best compression's match selection by [@​greatroar](https://togithub.com/greatroar) in [https://github.com/klauspost/compress/pull/705](https://togithub.com/klauspost/compress/pull/705) - zstd: Select best match using selection trees by [@​greatroar](https://togithub.com/greatroar) in [https://github.com/klauspost/compress/pull/706](https://togithub.com/klauspost/compress/pull/706) - zstd: sync xxhash with final accepted patch upstream by [@​lizthegrey](https://togithub.com/lizthegrey) in [https://github.com/klauspost/compress/pull/707](https://togithub.com/klauspost/compress/pull/707) - zstd: Import xxhash v2.2.0 by [@​greatroar](https://togithub.com/greatroar) in [https://github.com/klauspost/compress/pull/708](https://togithub.com/klauspost/compress/pull/708) **Full Changelog**: klauspost/compress@v1.15.12...v1.15.13 ### [`v1.15.12`](https://togithub.com/klauspost/compress/releases/tag/v1.15.12) [Compare Source](https://togithub.com/klauspost/compress/compare/v1.15.11...v1.15.12) ##### What's Changed - zstd: Tweak decoder allocs. by [@​klauspost](https://togithub.com/klauspost) in [https://github.com/klauspost/compress/pull/680](https://togithub.com/klauspost/compress/pull/680) - gzhttp: Always delete `HeaderNoCompression` by [@​klauspost](https://togithub.com/klauspost) in [https://github.com/klauspost/compress/pull/683](https://togithub.com/klauspost/compress/pull/683) **Full Changelog**: klauspost/compress@v1.15.11...v1.15.12 </details> --- ### Configuration 📅 **Schedule**: Branch creation - "before 3am on the first day of the month" (UTC), Automerge - At any time (no schedule defined). 🚦 **Automerge**: Disabled by config. Please merge this manually once you are satisfied. ♻ **Rebasing**: Whenever PR becomes conflicted, or you tick the rebase/retry checkbox. 🔕 **Ignore**: Close this PR and you won't be reminded about this update again. --- - [ ] <!-- rebase-check -->If you want to rebase/retry this PR, check this box --- This PR has been generated by [Renovate Bot](https://togithub.com/renovatebot/renovate). <!--renovate-debug:eyJjcmVhdGVkSW5WZXIiOiIzNC4xMDkuMSIsInVwZGF0ZWRJblZlciI6IjM0LjEwOS4xIn0=-->
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Mar 1, 2023
This PR contains the following updates: | Package | Type | Update | Change | |---|---|---|---| | [github.com/klauspost/compress](https://togithub.com/klauspost/compress) | indirect | minor | `v1.15.11` -> `v1.16.0` | --- ### ⚠ Dependency Lookup Warnings ⚠ Warnings were logged while processing this repo. Please check the Dependency Dashboard for more information. --- ### Release Notes <details> <summary>klauspost/compress</summary> ### [`v1.16.0`](https://togithub.com/klauspost/compress/releases/tag/v1.16.0) [Compare Source](https://togithub.com/klauspost/compress/compare/v1.15.15...v1.16.0) #### What's Changed - s2: Add Dictionary support by [@​klauspost](https://togithub.com/klauspost) in [https://github.com/klauspost/compress/pull/685](https://togithub.com/klauspost/compress/pull/685) - s2: Add Compression Size Estimate by [@​klauspost](https://togithub.com/klauspost) in [https://github.com/klauspost/compress/pull/752](https://togithub.com/klauspost/compress/pull/752) - s2: Add support for custom stream encoder by [@​klauspost](https://togithub.com/klauspost) in [https://github.com/klauspost/compress/pull/755](https://togithub.com/klauspost/compress/pull/755) - s2: Add LZ4 block converter by [@​klauspost](https://togithub.com/klauspost) in [https://github.com/klauspost/compress/pull/748](https://togithub.com/klauspost/compress/pull/748) - s2: Support io.ReaderAt in ReadSeeker by [@​klauspost](https://togithub.com/klauspost) in [https://github.com/klauspost/compress/pull/747](https://togithub.com/klauspost/compress/pull/747) - s2c/s2sx: Use concurrent decoding by [@​klauspost](https://togithub.com/klauspost) in [https://github.com/klauspost/compress/pull/746](https://togithub.com/klauspost/compress/pull/746) - tests: Upgrade to Go 1.20 by [@​klauspost](https://togithub.com/klauspost) in [https://github.com/klauspost/compress/pull/749](https://togithub.com/klauspost/compress/pull/749) - Update all (command) dependencies by [@​klauspost](https://togithub.com/klauspost) in [https://github.com/klauspost/compress/pull/758](https://togithub.com/klauspost/compress/pull/758) **Full Changelog**: klauspost/compress@v1.15.15...v1.16.0 ### [`v1.15.15`](https://togithub.com/klauspost/compress/releases/tag/v1.15.15) [Compare Source](https://togithub.com/klauspost/compress/compare/v1.15.14...v1.15.15) #### What's Changed - zstd: Add delta encoding support by [@​greatroar](https://togithub.com/greatroar) in [https://github.com/klauspost/compress/pull/728](https://togithub.com/klauspost/compress/pull/728) - huff0: Reduce bounds checking by [@​greatroar](https://togithub.com/greatroar) in [https://github.com/klauspost/compress/pull/734](https://togithub.com/klauspost/compress/pull/734) - huff0: Assembler improvements by [@​greatroar](https://togithub.com/greatroar) in [https://github.com/klauspost/compress/pull/736](https://togithub.com/klauspost/compress/pull/736) - deflate: Improve level 7-9 by [@​klauspost](https://togithub.com/klauspost) in [https://github.com/klauspost/compress/pull/739](https://togithub.com/klauspost/compress/pull/739) - gzhttp: Add SuffixETag() and DropETag() options to prevent ETag collisions on compressed responses by [@​willbicks](https://togithub.com/willbicks) in [https://github.com/klauspost/compress/pull/740](https://togithub.com/klauspost/compress/pull/740) - zstd: Don't allocate dataStorage when using byteBuf by [@​klauspost](https://togithub.com/klauspost) in [https://github.com/klauspost/compress/pull/741](https://togithub.com/klauspost/compress/pull/741) - huff0: Speed up compression of short blocks by [@​greatroar](https://togithub.com/greatroar) in [https://github.com/klauspost/compress/pull/744](https://togithub.com/klauspost/compress/pull/744) - zstd: Handle dicts by pointer, always by [@​greatroar](https://togithub.com/greatroar) in [https://github.com/klauspost/compress/pull/743](https://togithub.com/klauspost/compress/pull/743) - fse: Optimize compression by [@​greatroar](https://togithub.com/greatroar) in [https://github.com/klauspost/compress/pull/745](https://togithub.com/klauspost/compress/pull/745) - Retract v1.14.1-v.1.14.3 by [@​klauspost](https://togithub.com/klauspost) in [https://github.com/klauspost/compress/pull/742](https://togithub.com/klauspost/compress/pull/742) #### New Contributors - [@​willbicks](https://togithub.com/willbicks) made their first contribution in [https://github.com/klauspost/compress/pull/740](https://togithub.com/klauspost/compress/pull/740) **Full Changelog**: klauspost/compress@v1.15.14...v1.15.15 ### [`v1.15.14`](https://togithub.com/klauspost/compress/releases/tag/v1.15.14) [Compare Source](https://togithub.com/klauspost/compress/compare/v1.15.13...v1.15.14) #### What's Changed - flate: Improve speed in big stateless blocks. by [@​klauspost](https://togithub.com/klauspost) in [https://github.com/klauspost/compress/pull/718](https://togithub.com/klauspost/compress/pull/718) - zstd: Trigger BCE by switching on lengths by [@​greatroar](https://togithub.com/greatroar) in [https://github.com/klauspost/compress/pull/716](https://togithub.com/klauspost/compress/pull/716) - zstd: Shave some instructions off the amd64 asm by [@​greatroar](https://togithub.com/greatroar) in [https://github.com/klauspost/compress/pull/720](https://togithub.com/klauspost/compress/pull/720) - export NoGzipResponseWriter for custom ResponseWriter wrappers by [@​harshavardhana](https://togithub.com/harshavardhana) in [https://github.com/klauspost/compress/pull/722](https://togithub.com/klauspost/compress/pull/722) - s2: Add example for indexing and existing stream by [@​klauspost](https://togithub.com/klauspost) in [https://github.com/klauspost/compress/pull/723](https://togithub.com/klauspost/compress/pull/723) - tests: Tweak fuzz tests by [@​klauspost](https://togithub.com/klauspost) in [https://github.com/klauspost/compress/pull/719](https://togithub.com/klauspost/compress/pull/719) #### New Contributors - [@​harshavardhana](https://togithub.com/harshavardhana) made their first contribution in [https://github.com/klauspost/compress/pull/722](https://togithub.com/klauspost/compress/pull/722) **Full Changelog**: klauspost/compress@v1.15.13...v1.15.14 ### [`v1.15.13`](https://togithub.com/klauspost/compress/releases/tag/v1.15.13) [Compare Source](https://togithub.com/klauspost/compress/compare/v1.15.12...v1.15.13) #### What's Changed - zstd: Add MaxEncodedSize to encoder by [@​klauspost](https://togithub.com/klauspost) in [https://github.com/klauspost/compress/pull/691](https://togithub.com/klauspost/compress/pull/691) - zstd: Improve "best" end search by [@​klauspost](https://togithub.com/klauspost) in [https://github.com/klauspost/compress/pull/693](https://togithub.com/klauspost/compress/pull/693) - zstd: Replace bytes.Equal with smaller comparisons by [@​greatroar](https://togithub.com/greatroar) in [https://github.com/klauspost/compress/pull/695](https://togithub.com/klauspost/compress/pull/695) - zstd: Faster CRC checking/skipping by [@​greatroar](https://togithub.com/greatroar) in [https://github.com/klauspost/compress/pull/696](https://togithub.com/klauspost/compress/pull/696) - zstd: Rewrite matchLen to make it inlineable by [@​greatroar](https://togithub.com/greatroar) in [https://github.com/klauspost/compress/pull/701](https://togithub.com/klauspost/compress/pull/701) - zstd: Write table clearing in a way that the compiler recognizes by [@​greatroar](https://togithub.com/greatroar) in [https://github.com/klauspost/compress/pull/702](https://togithub.com/klauspost/compress/pull/702) - zstd: Use individual reset threshold by [@​klauspost](https://togithub.com/klauspost) in [https://github.com/klauspost/compress/pull/703](https://togithub.com/klauspost/compress/pull/703) - huff0: Check for zeros earlier in Scratch.countSimple by [@​greatroar](https://togithub.com/greatroar) in [https://github.com/klauspost/compress/pull/704](https://togithub.com/klauspost/compress/pull/704) - zstd: Improve best compression's match selection by [@​greatroar](https://togithub.com/greatroar) in [https://github.com/klauspost/compress/pull/705](https://togithub.com/klauspost/compress/pull/705) - zstd: Select best match using selection trees by [@​greatroar](https://togithub.com/greatroar) in [https://github.com/klauspost/compress/pull/706](https://togithub.com/klauspost/compress/pull/706) - zstd: sync xxhash with final accepted patch upstream by [@​lizthegrey](https://togithub.com/lizthegrey) in [https://github.com/klauspost/compress/pull/707](https://togithub.com/klauspost/compress/pull/707) - zstd: Import xxhash v2.2.0 by [@​greatroar](https://togithub.com/greatroar) in [https://github.com/klauspost/compress/pull/708](https://togithub.com/klauspost/compress/pull/708) **Full Changelog**: klauspost/compress@v1.15.12...v1.15.13 ### [`v1.15.12`](https://togithub.com/klauspost/compress/releases/tag/v1.15.12) [Compare Source](https://togithub.com/klauspost/compress/compare/v1.15.11...v1.15.12) #### What's Changed - zstd: Tweak decoder allocs. by [@​klauspost](https://togithub.com/klauspost) in [https://github.com/klauspost/compress/pull/680](https://togithub.com/klauspost/compress/pull/680) - gzhttp: Always delete `HeaderNoCompression` by [@​klauspost](https://togithub.com/klauspost) in [https://github.com/klauspost/compress/pull/683](https://togithub.com/klauspost/compress/pull/683) **Full Changelog**: klauspost/compress@v1.15.11...v1.15.12 </details> --- ### Configuration 📅 **Schedule**: Branch creation - "before 3am on the first day of the month" (UTC), Automerge - At any time (no schedule defined). 🚦 **Automerge**: Disabled by config. Please merge this manually once you are satisfied. ♻ **Rebasing**: Whenever PR becomes conflicted, or you tick the rebase/retry checkbox. 🔕 **Ignore**: Close this PR and you won't be reminded about this update again. --- - [ ] <!-- rebase-check -->If you want to rebase/retry this PR, check this box --- This PR has been generated by [Renovate Bot](https://togithub.com/renovatebot/renovate). <!--renovate-debug:eyJjcmVhdGVkSW5WZXIiOiIzNC4xMDkuMSIsInVwZGF0ZWRJblZlciI6IjM0LjE1NC4wIn0=-->
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Two patches:
See second commit for benchmark figures.