flate: Improve speed in big stateless blocks. #718
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Don't re-alloc and copy dict for every block when compressing more than 32KB. ``` benchmark old ns/op new ns/op delta BenchmarkEncodeDigitsSL1e4-32 52954 52850 -0.20% BenchmarkEncodeDigitsSL1e5-32 781061 745420 -4.56% BenchmarkEncodeDigitsSL1e6-32 8143640 7715674 -5.26% BenchmarkEncodeTwainSL1e4-32 68150 68415 +0.39% BenchmarkEncodeTwainSL1e5-32 715140 687326 -3.89% BenchmarkEncodeTwainSL1e6-32 7718175 7339694 -4.90% benchmark old MB/s new MB/s speedup BenchmarkEncodeDigitsSL1e4-32 188.84 189.21 1.00x BenchmarkEncodeDigitsSL1e5-32 128.03 134.15 1.05x BenchmarkEncodeDigitsSL1e6-32 122.80 129.61 1.06x BenchmarkEncodeTwainSL1e4-32 146.74 146.17 1.00x BenchmarkEncodeTwainSL1e5-32 139.83 145.49 1.04x BenchmarkEncodeTwainSL1e6-32 129.56 136.25 1.05x benchmark old allocs new allocs delta BenchmarkEncodeDigitsSL1e4-32 0 0 +0.00% BenchmarkEncodeDigitsSL1e5-32 3 0 -100.00% BenchmarkEncodeDigitsSL1e6-32 41 0 -100.00% BenchmarkEncodeTwainSL1e4-32 0 0 +0.00% BenchmarkEncodeTwainSL1e5-32 3 0 -100.00% BenchmarkEncodeTwainSL1e6-32 41 0 -100.00% benchmark old bytes new bytes delta BenchmarkEncodeDigitsSL1e4-32 0 0 +0.00% BenchmarkEncodeDigitsSL1e5-32 92929 9 -99.99% BenchmarkEncodeDigitsSL1e6-32 1298964 97 -99.99% BenchmarkEncodeTwainSL1e4-32 0 0 +0.00% BenchmarkEncodeTwainSL1e5-32 92928 8 -99.99% BenchmarkEncodeTwainSL1e6-32 1298871 92 -99.99% ```
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…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 [klauspost/compress#728 - huff0: Reduce bounds checking by [@​greatroar](https://togithub.com/greatroar) in [klauspost/compress#734 - huff0: Assembler improvements by [@​greatroar](https://togithub.com/greatroar) in [klauspost/compress#736 - deflate: Improve level 7-9 by [@​klauspost](https://togithub.com/klauspost) in [klauspost/compress#739 - gzhttp: Add SuffixETag() and DropETag() options to prevent ETag collisions on compressed responses by [@​willbicks](https://togithub.com/willbicks) in [klauspost/compress#740 - zstd: Don't allocate dataStorage when using byteBuf by [@​klauspost](https://togithub.com/klauspost) in [klauspost/compress#741 - huff0: Speed up compression of short blocks by [@​greatroar](https://togithub.com/greatroar) in [klauspost/compress#744 - zstd: Handle dicts by pointer, always by [@​greatroar](https://togithub.com/greatroar) in [klauspost/compress#743 - fse: Optimize compression by [@​greatroar](https://togithub.com/greatroar) in [klauspost/compress#745 - Retract v1.14.1-v.1.14.3 by [@​klauspost](https://togithub.com/klauspost) in [klauspost/compress#742 ##### New Contributors - [@​willbicks](https://togithub.com/willbicks) made their first contribution in [klauspost/compress#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 [klauspost/compress#718 - zstd: Trigger BCE by switching on lengths by [@​greatroar](https://togithub.com/greatroar) in [klauspost/compress#716 - zstd: Shave some instructions off the amd64 asm by [@​greatroar](https://togithub.com/greatroar) in [klauspost/compress#720 - export NoGzipResponseWriter for custom ResponseWriter wrappers by [@​harshavardhana](https://togithub.com/harshavardhana) in [klauspost/compress#722 - s2: Add example for indexing and existing stream by [@​klauspost](https://togithub.com/klauspost) in [klauspost/compress#723 - tests: Tweak fuzz tests by [@​klauspost](https://togithub.com/klauspost) in [klauspost/compress#719 #### New Contributors - [@​harshavardhana](https://togithub.com/harshavardhana) made their first contribution in [klauspost/compress#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 [klauspost/compress#691 - zstd: Improve "best" end search by [@​klauspost](https://togithub.com/klauspost) in [klauspost/compress#693 - zstd: Replace bytes.Equal with smaller comparisons by [@​greatroar](https://togithub.com/greatroar) in [klauspost/compress#695 - zstd: Faster CRC checking/skipping by [@​greatroar](https://togithub.com/greatroar) in [klauspost/compress#696 - zstd: Rewrite matchLen to make it inlineable by [@​greatroar](https://togithub.com/greatroar) in [klauspost/compress#701 - zstd: Write table clearing in a way that the compiler recognizes by [@​greatroar](https://togithub.com/greatroar) in [klauspost/compress#702 - zstd: Use individual reset threshold by [@​klauspost](https://togithub.com/klauspost) in [klauspost/compress#703 - huff0: Check for zeros earlier in Scratch.countSimple by [@​greatroar](https://togithub.com/greatroar) in [klauspost/compress#704 - zstd: Improve best compression's match selection by [@​greatroar](https://togithub.com/greatroar) in [klauspost/compress#705 - zstd: Select best match using selection trees by [@​greatroar](https://togithub.com/greatroar) in [klauspost/compress#706 - zstd: sync xxhash with final accepted patch upstream by [@​lizthegrey](https://togithub.com/lizthegrey) in [klauspost/compress#707 - zstd: Import xxhash v2.2.0 by [@​greatroar](https://togithub.com/greatroar) in [klauspost/compress#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 [klauspost/compress#680 - gzhttp: Always delete `HeaderNoCompression` by [@​klauspost](https://togithub.com/klauspost) in [klauspost/compress#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 - 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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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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 [klauspost/compress#685 - s2: Add Compression Size Estimate by [@​klauspost](https://togithub.com/klauspost) in [klauspost/compress#752 - s2: Add support for custom stream encoder by [@​klauspost](https://togithub.com/klauspost) in [klauspost/compress#755 - s2: Add LZ4 block converter by [@​klauspost](https://togithub.com/klauspost) in [klauspost/compress#748 - s2: Support io.ReaderAt in ReadSeeker by [@​klauspost](https://togithub.com/klauspost) in [klauspost/compress#747 - s2c/s2sx: Use concurrent decoding by [@​klauspost](https://togithub.com/klauspost) in [klauspost/compress#746 - tests: Upgrade to Go 1.20 by [@​klauspost](https://togithub.com/klauspost) in [klauspost/compress#749 - Update all (command) dependencies by [@​klauspost](https://togithub.com/klauspost) in [klauspost/compress#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 [klauspost/compress#728 - huff0: Reduce bounds checking by [@​greatroar](https://togithub.com/greatroar) in [klauspost/compress#734 - huff0: Assembler improvements by [@​greatroar](https://togithub.com/greatroar) in [klauspost/compress#736 - deflate: Improve level 7-9 by [@​klauspost](https://togithub.com/klauspost) in [klauspost/compress#739 - gzhttp: Add SuffixETag() and DropETag() options to prevent ETag collisions on compressed responses by [@​willbicks](https://togithub.com/willbicks) in [klauspost/compress#740 - zstd: Don't allocate dataStorage when using byteBuf by [@​klauspost](https://togithub.com/klauspost) in [klauspost/compress#741 - huff0: Speed up compression of short blocks by [@​greatroar](https://togithub.com/greatroar) in [klauspost/compress#744 - zstd: Handle dicts by pointer, always by [@​greatroar](https://togithub.com/greatroar) in [klauspost/compress#743 - fse: Optimize compression by [@​greatroar](https://togithub.com/greatroar) in [klauspost/compress#745 - Retract v1.14.1-v.1.14.3 by [@​klauspost](https://togithub.com/klauspost) in [klauspost/compress#742 #### New Contributors - [@​willbicks](https://togithub.com/willbicks) made their first contribution in [klauspost/compress#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 [klauspost/compress#718 - zstd: Trigger BCE by switching on lengths by [@​greatroar](https://togithub.com/greatroar) in [klauspost/compress#716 - zstd: Shave some instructions off the amd64 asm by [@​greatroar](https://togithub.com/greatroar) in [klauspost/compress#720 - export NoGzipResponseWriter for custom ResponseWriter wrappers by [@​harshavardhana](https://togithub.com/harshavardhana) in [klauspost/compress#722 - s2: Add example for indexing and existing stream by [@​klauspost](https://togithub.com/klauspost) in [klauspost/compress#723 - tests: Tweak fuzz tests by [@​klauspost](https://togithub.com/klauspost) in [klauspost/compress#719 #### New Contributors - [@​harshavardhana](https://togithub.com/harshavardhana) made their first contribution in [klauspost/compress#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 [klauspost/compress#691 - zstd: Improve "best" end search by [@​klauspost](https://togithub.com/klauspost) in [klauspost/compress#693 - zstd: Replace bytes.Equal with smaller comparisons by [@​greatroar](https://togithub.com/greatroar) in [klauspost/compress#695 - zstd: Faster CRC checking/skipping by [@​greatroar](https://togithub.com/greatroar) in [klauspost/compress#696 - zstd: Rewrite matchLen to make it inlineable by [@​greatroar](https://togithub.com/greatroar) in [klauspost/compress#701 - zstd: Write table clearing in a way that the compiler recognizes by [@​greatroar](https://togithub.com/greatroar) in [klauspost/compress#702 - zstd: Use individual reset threshold by [@​klauspost](https://togithub.com/klauspost) in [klauspost/compress#703 - huff0: Check for zeros earlier in Scratch.countSimple by [@​greatroar](https://togithub.com/greatroar) in [klauspost/compress#704 - zstd: Improve best compression's match selection by [@​greatroar](https://togithub.com/greatroar) in [klauspost/compress#705 - zstd: Select best match using selection trees by [@​greatroar](https://togithub.com/greatroar) in [klauspost/compress#706 - zstd: sync xxhash with final accepted patch upstream by [@​lizthegrey](https://togithub.com/lizthegrey) in [klauspost/compress#707 - zstd: Import xxhash v2.2.0 by [@​greatroar](https://togithub.com/greatroar) in [klauspost/compress#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 [klauspost/compress#680 - gzhttp: Always delete `HeaderNoCompression` by [@​klauspost](https://togithub.com/klauspost) in [klauspost/compress#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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Don't re-alloc and copy dict for every block when compressing more than 32KB.