Skip to content
New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

huff0: Speed up compression of short blocks #744

Merged
merged 1 commit into from
Jan 20, 2023

Conversation

greatroar
Copy link
Contributor

This is ugly, but it forces the compiler to merge loads and stores of nodeElts.

name                                      old speed      new speed      delta
Compress4XReuseNone/digits-8               433MB/s ± 1%   434MB/s ± 0%     ~     (p=0.393 n=10+10)
Compress4XReuseNone/gettysburg-8           245MB/s ± 1%   254MB/s ± 1%   +3.55%  (p=0.000 n=10+10)
Compress4XReuseNone/twain-8                363MB/s ± 0%   363MB/s ± 0%     ~     (p=0.360 n=8+10)
Compress4XReuseNone/low-ent.10k-8          465MB/s ± 0%   467MB/s ± 0%   +0.32%  (p=0.008 n=9+10)
Compress4XReuseNone/superlow-ent-10k-8     305MB/s ± 2%   304MB/s ± 1%     ~     (p=0.143 n=10+10)
Compress4XReuseNone/case1-8               13.1MB/s ± 1%  14.6MB/s ± 2%  +11.44%  (p=0.000 n=10+10)
Compress4XReuseNone/case2-8               10.9MB/s ± 1%  12.3MB/s ± 2%  +12.28%  (p=0.000 n=10+9)
Compress4XReuseNone/case3-8               11.5MB/s ± 1%  12.9MB/s ± 2%  +12.37%  (p=0.000 n=10+10)
Compress4XReuseNone/pngdata.001-8          300MB/s ± 0%   298MB/s ± 2%     ~     (p=0.762 n=8+10)
Compress4XReuseNone/normcount2-8          31.5MB/s ± 1%  33.7MB/s ± 2%   +6.87%  (p=0.000 n=9+10)
Compress4XReuseAllow/digits-8              435MB/s ± 1%   432MB/s ± 2%     ~     (p=0.043 n=10+10)
Compress4XReuseAllow/gettysburg-8          272MB/s ± 1%   281MB/s ± 1%   +3.19%  (p=0.000 n=10+10)
Compress4XReuseAllow/twain-8               363MB/s ± 0%   361MB/s ± 1%     ~     (p=0.150 n=9+10)
Compress4XReuseAllow/low-ent.10k-8         469MB/s ± 1%   469MB/s ± 0%     ~     (p=0.616 n=10+10)
Compress4XReuseAllow/superlow-ent-10k-8    305MB/s ± 0%   306MB/s ± 0%   +0.44%  (p=0.001 n=9+9)
Compress4XReuseAllow/case1-8              15.8MB/s ± 0%  18.0MB/s ± 2%  +13.88%  (p=0.000 n=9+10)
Compress4XReuseAllow/case2-8              13.3MB/s ± 0%  15.4MB/s ± 1%  +15.86%  (p=0.000 n=9+10)
Compress4XReuseAllow/case3-8              14.1MB/s ± 0%  15.8MB/s ± 1%  +12.15%  (p=0.000 n=10+8)
Compress4XReuseAllow/pngdata.001-8         302MB/s ± 1%   304MB/s ± 0%   +0.68%  (p=0.000 n=9+10)
Compress4XReuseAllow/normcount2-8         40.2MB/s ± 1%  43.8MB/s ± 2%   +8.86%  (p=0.000 n=10+10)
Compress4XReusePrefer/digits-8             436MB/s ± 0%   436MB/s ± 1%     ~     (p=0.560 n=9+9)
Compress4XReusePrefer/gettysburg-8         422MB/s ± 1%   421MB/s ± 2%     ~     (p=0.579 n=10+10)
Compress4XReusePrefer/twain-8              363MB/s ± 1%   365MB/s ± 0%     ~     (p=0.018 n=10+10)
Compress4XReusePrefer/low-ent.10k-8        473MB/s ± 0%   472MB/s ± 0%     ~     (p=0.021 n=7+8)
Compress4XReusePrefer/superlow-ent-10k-8   312MB/s ± 1%   312MB/s ± 0%     ~     (p=0.278 n=10+9)
Compress4XReusePrefer/case1-8              134MB/s ± 1%   134MB/s ± 1%     ~     (p=0.780 n=9+10)
Compress4XReusePrefer/case2-8              122MB/s ± 2%   122MB/s ± 0%     ~     (p=1.000 n=10+8)
Compress4XReusePrefer/case3-8              129MB/s ± 3%   129MB/s ± 0%     ~     (p=0.698 n=10+10)
Compress4XReusePrefer/pngdata.001-8        313MB/s ± 1%   313MB/s ± 0%     ~     (p=0.481 n=10+10)
Compress4XReusePrefer/normcount2-8         179MB/s ± 2%   182MB/s ± 0%   +1.96%  (p=0.000 n=10+9)
Compress4XSizes/digits-100-8              57.6MB/s ± 1%  61.7MB/s ± 1%   +7.11%  (p=0.000 n=9+10)
Compress4XSizes/digits-200-8               100MB/s ± 2%   108MB/s ± 2%   +7.90%  (p=0.000 n=10+10)
Compress4XSizes/digits-500-8               191MB/s ± 1%   201MB/s ± 1%   +5.55%  (p=0.000 n=10+9)
Compress4XSizes/digits-1000-8              273MB/s ± 1%   283MB/s ± 1%   +3.75%  (p=0.000 n=10+10)
Compress4XSizes/digits-5000-8              416MB/s ± 0%   418MB/s ± 1%     ~     (p=0.165 n=10+10)
Compress4XSizes/digits-10000-8             434MB/s ± 1%   437MB/s ± 1%   +0.65%  (p=0.002 n=10+10)
Compress4XSizes/digits-50000-8             434MB/s ± 0%   434MB/s ± 0%     ~     (p=0.604 n=10+9)
[Geo mean]                                 152MB/s        157MB/s        +3.33%

Tells the compiler to merge loads and stores of nodeElts.

name                                      old speed      new speed      delta
Compress4XReuseNone/digits-8               433MB/s ± 1%   434MB/s ± 0%     ~     (p=0.393 n=10+10)
Compress4XReuseNone/gettysburg-8           245MB/s ± 1%   254MB/s ± 1%   +3.55%  (p=0.000 n=10+10)
Compress4XReuseNone/twain-8                363MB/s ± 0%   363MB/s ± 0%     ~     (p=0.360 n=8+10)
Compress4XReuseNone/low-ent.10k-8          465MB/s ± 0%   467MB/s ± 0%   +0.32%  (p=0.008 n=9+10)
Compress4XReuseNone/superlow-ent-10k-8     305MB/s ± 2%   304MB/s ± 1%     ~     (p=0.143 n=10+10)
Compress4XReuseNone/case1-8               13.1MB/s ± 1%  14.6MB/s ± 2%  +11.44%  (p=0.000 n=10+10)
Compress4XReuseNone/case2-8               10.9MB/s ± 1%  12.3MB/s ± 2%  +12.28%  (p=0.000 n=10+9)
Compress4XReuseNone/case3-8               11.5MB/s ± 1%  12.9MB/s ± 2%  +12.37%  (p=0.000 n=10+10)
Compress4XReuseNone/pngdata.001-8          300MB/s ± 0%   298MB/s ± 2%     ~     (p=0.762 n=8+10)
Compress4XReuseNone/normcount2-8          31.5MB/s ± 1%  33.7MB/s ± 2%   +6.87%  (p=0.000 n=9+10)
Compress4XReuseAllow/digits-8              435MB/s ± 1%   432MB/s ± 2%     ~     (p=0.043 n=10+10)
Compress4XReuseAllow/gettysburg-8          272MB/s ± 1%   281MB/s ± 1%   +3.19%  (p=0.000 n=10+10)
Compress4XReuseAllow/twain-8               363MB/s ± 0%   361MB/s ± 1%     ~     (p=0.150 n=9+10)
Compress4XReuseAllow/low-ent.10k-8         469MB/s ± 1%   469MB/s ± 0%     ~     (p=0.616 n=10+10)
Compress4XReuseAllow/superlow-ent-10k-8    305MB/s ± 0%   306MB/s ± 0%   +0.44%  (p=0.001 n=9+9)
Compress4XReuseAllow/case1-8              15.8MB/s ± 0%  18.0MB/s ± 2%  +13.88%  (p=0.000 n=9+10)
Compress4XReuseAllow/case2-8              13.3MB/s ± 0%  15.4MB/s ± 1%  +15.86%  (p=0.000 n=9+10)
Compress4XReuseAllow/case3-8              14.1MB/s ± 0%  15.8MB/s ± 1%  +12.15%  (p=0.000 n=10+8)
Compress4XReuseAllow/pngdata.001-8         302MB/s ± 1%   304MB/s ± 0%   +0.68%  (p=0.000 n=9+10)
Compress4XReuseAllow/normcount2-8         40.2MB/s ± 1%  43.8MB/s ± 2%   +8.86%  (p=0.000 n=10+10)
Compress4XReusePrefer/digits-8             436MB/s ± 0%   436MB/s ± 1%     ~     (p=0.560 n=9+9)
Compress4XReusePrefer/gettysburg-8         422MB/s ± 1%   421MB/s ± 2%     ~     (p=0.579 n=10+10)
Compress4XReusePrefer/twain-8              363MB/s ± 1%   365MB/s ± 0%     ~     (p=0.018 n=10+10)
Compress4XReusePrefer/low-ent.10k-8        473MB/s ± 0%   472MB/s ± 0%     ~     (p=0.021 n=7+8)
Compress4XReusePrefer/superlow-ent-10k-8   312MB/s ± 1%   312MB/s ± 0%     ~     (p=0.278 n=10+9)
Compress4XReusePrefer/case1-8              134MB/s ± 1%   134MB/s ± 1%     ~     (p=0.780 n=9+10)
Compress4XReusePrefer/case2-8              122MB/s ± 2%   122MB/s ± 0%     ~     (p=1.000 n=10+8)
Compress4XReusePrefer/case3-8              129MB/s ± 3%   129MB/s ± 0%     ~     (p=0.698 n=10+10)
Compress4XReusePrefer/pngdata.001-8        313MB/s ± 1%   313MB/s ± 0%     ~     (p=0.481 n=10+10)
Compress4XReusePrefer/normcount2-8         179MB/s ± 2%   182MB/s ± 0%   +1.96%  (p=0.000 n=10+9)
Compress4XSizes/digits-100-8              57.6MB/s ± 1%  61.7MB/s ± 1%   +7.11%  (p=0.000 n=9+10)
Compress4XSizes/digits-200-8               100MB/s ± 2%   108MB/s ± 2%   +7.90%  (p=0.000 n=10+10)
Compress4XSizes/digits-500-8               191MB/s ± 1%   201MB/s ± 1%   +5.55%  (p=0.000 n=10+9)
Compress4XSizes/digits-1000-8              273MB/s ± 1%   283MB/s ± 1%   +3.75%  (p=0.000 n=10+10)
Compress4XSizes/digits-5000-8              416MB/s ± 0%   418MB/s ± 1%     ~     (p=0.165 n=10+10)
Compress4XSizes/digits-10000-8             434MB/s ± 1%   437MB/s ± 1%   +0.65%  (p=0.002 n=10+10)
Compress4XSizes/digits-50000-8             434MB/s ± 0%   434MB/s ± 0%     ~     (p=0.604 n=10+9)
[Geo mean]                                 152MB/s        157MB/s        +3.33%
@klauspost
Copy link
Owner

Wonderful! Never took the time to optimize the table building. Great stuff!

@klauspost klauspost merged commit 7a74de4 into klauspost:master Jan 20, 2023
@greatroar greatroar deleted the huff0-nodeelt branch January 20, 2023 10:51
kodiakhq bot referenced this pull request in cloudquery/cloudquery Feb 1, 2023
…7575)

This PR contains the following updates:

| Package | Type | Update | Change |
|---|---|---|---|
| [github.com/klauspost/compress](https://github.com/klauspost/compress) | indirect | patch | `v1.15.11` -> `v1.15.15` |

---

### Release Notes

<details>
<summary>klauspost/compress</summary>

### [`v1.15.15`](https://github.com/klauspost/compress/releases/tag/v1.15.15)

[Compare Source](https://github.com/klauspost/compress/compare/v1.15.14...v1.15.15)

##### What's Changed

-   zstd: Add delta encoding support by [@&#8203;greatroar](https://github.com/greatroar) in [https://github.com/klauspost/compress/pull/728](https://github.com/klauspost/compress/pull/728)
-   huff0: Reduce bounds checking by [@&#8203;greatroar](https://github.com/greatroar) in [https://github.com/klauspost/compress/pull/734](https://github.com/klauspost/compress/pull/734)
-   huff0: Assembler improvements by [@&#8203;greatroar](https://github.com/greatroar) in [https://github.com/klauspost/compress/pull/736](https://github.com/klauspost/compress/pull/736)
-   deflate: Improve level 7-9 by [@&#8203;klauspost](https://github.com/klauspost) in [https://github.com/klauspost/compress/pull/739](https://github.com/klauspost/compress/pull/739)
-   gzhttp: Add SuffixETag() and DropETag() options to prevent ETag collisions on compressed responses by [@&#8203;willbicks](https://github.com/willbicks) in [https://github.com/klauspost/compress/pull/740](https://github.com/klauspost/compress/pull/740)
-   zstd: Don't allocate dataStorage when using byteBuf by [@&#8203;klauspost](https://github.com/klauspost) in [https://github.com/klauspost/compress/pull/741](https://github.com/klauspost/compress/pull/741)
-   huff0: Speed up compression of short blocks by [@&#8203;greatroar](https://github.com/greatroar) in [https://github.com/klauspost/compress/pull/744](https://github.com/klauspost/compress/pull/744)
-   zstd: Handle dicts by pointer, always by [@&#8203;greatroar](https://github.com/greatroar) in [https://github.com/klauspost/compress/pull/743](https://github.com/klauspost/compress/pull/743)
-   fse: Optimize compression by [@&#8203;greatroar](https://github.com/greatroar) in [https://github.com/klauspost/compress/pull/745](https://github.com/klauspost/compress/pull/745)
-   Retract v1.14.1-v.1.14.3 by [@&#8203;klauspost](https://github.com/klauspost) in [https://github.com/klauspost/compress/pull/742](https://github.com/klauspost/compress/pull/742)

##### New Contributors

-   [@&#8203;willbicks](https://github.com/willbicks) made their first contribution in [https://github.com/klauspost/compress/pull/740](https://github.com/klauspost/compress/pull/740)

**Full Changelog**: klauspost/compress@v1.15.14...v1.15.15

### [`v1.15.14`](https://github.com/klauspost/compress/releases/tag/v1.15.14)

[Compare Source](https://github.com/klauspost/compress/compare/v1.15.13...v1.15.14)

#### What's Changed

-   flate: Improve speed in big stateless blocks. by [@&#8203;klauspost](https://github.com/klauspost) in [https://github.com/klauspost/compress/pull/718](https://github.com/klauspost/compress/pull/718)
-   zstd: Trigger BCE by switching on lengths by [@&#8203;greatroar](https://github.com/greatroar) in [https://github.com/klauspost/compress/pull/716](https://github.com/klauspost/compress/pull/716)
-   zstd: Shave some instructions off the amd64 asm by [@&#8203;greatroar](https://github.com/greatroar) in [https://github.com/klauspost/compress/pull/720](https://github.com/klauspost/compress/pull/720)
-   export NoGzipResponseWriter for custom ResponseWriter wrappers by [@&#8203;harshavardhana](https://github.com/harshavardhana) in [https://github.com/klauspost/compress/pull/722](https://github.com/klauspost/compress/pull/722)
-   s2: Add example for indexing and existing stream by [@&#8203;klauspost](https://github.com/klauspost) in [https://github.com/klauspost/compress/pull/723](https://github.com/klauspost/compress/pull/723)
-   tests: Tweak fuzz tests by [@&#8203;klauspost](https://github.com/klauspost) in [https://github.com/klauspost/compress/pull/719](https://github.com/klauspost/compress/pull/719)

#### New Contributors

-   [@&#8203;harshavardhana](https://github.com/harshavardhana) made their first contribution in [https://github.com/klauspost/compress/pull/722](https://github.com/klauspost/compress/pull/722)

**Full Changelog**: klauspost/compress@v1.15.13...v1.15.14

### [`v1.15.13`](https://github.com/klauspost/compress/releases/tag/v1.15.13)

[Compare Source](https://github.com/klauspost/compress/compare/v1.15.12...v1.15.13)

#### What's Changed

-   zstd: Add MaxEncodedSize to encoder by [@&#8203;klauspost](https://github.com/klauspost) in [https://github.com/klauspost/compress/pull/691](https://github.com/klauspost/compress/pull/691)
-   zstd: Improve "best" end search by [@&#8203;klauspost](https://github.com/klauspost) in [https://github.com/klauspost/compress/pull/693](https://github.com/klauspost/compress/pull/693)
-   zstd: Replace bytes.Equal with smaller comparisons by [@&#8203;greatroar](https://github.com/greatroar) in [https://github.com/klauspost/compress/pull/695](https://github.com/klauspost/compress/pull/695)
-   zstd: Faster CRC checking/skipping by [@&#8203;greatroar](https://github.com/greatroar) in [https://github.com/klauspost/compress/pull/696](https://github.com/klauspost/compress/pull/696)
-   zstd: Rewrite matchLen to make it inlineable by [@&#8203;greatroar](https://github.com/greatroar) in [https://github.com/klauspost/compress/pull/701](https://github.com/klauspost/compress/pull/701)
-   zstd: Write table clearing in a way that the compiler recognizes by [@&#8203;greatroar](https://github.com/greatroar) in [https://github.com/klauspost/compress/pull/702](https://github.com/klauspost/compress/pull/702)
-   zstd: Use individual reset threshold by [@&#8203;klauspost](https://github.com/klauspost) in [https://github.com/klauspost/compress/pull/703](https://github.com/klauspost/compress/pull/703)
-   huff0: Check for zeros earlier in Scratch.countSimple by [@&#8203;greatroar](https://github.com/greatroar) in [https://github.com/klauspost/compress/pull/704](https://github.com/klauspost/compress/pull/704)
-   zstd: Improve best compression's match selection by [@&#8203;greatroar](https://github.com/greatroar) in [https://github.com/klauspost/compress/pull/705](https://github.com/klauspost/compress/pull/705)
-   zstd: Select best match using selection trees by [@&#8203;greatroar](https://github.com/greatroar) in [https://github.com/klauspost/compress/pull/706](https://github.com/klauspost/compress/pull/706)
-   zstd: sync xxhash with final accepted patch upstream by [@&#8203;lizthegrey](https://github.com/lizthegrey) in [https://github.com/klauspost/compress/pull/707](https://github.com/klauspost/compress/pull/707)
-   zstd: Import xxhash v2.2.0 by [@&#8203;greatroar](https://github.com/greatroar) in [https://github.com/klauspost/compress/pull/708](https://github.com/klauspost/compress/pull/708)

**Full Changelog**: klauspost/compress@v1.15.12...v1.15.13

### [`v1.15.12`](https://github.com/klauspost/compress/releases/tag/v1.15.12)

[Compare Source](https://github.com/klauspost/compress/compare/v1.15.11...v1.15.12)

##### What's Changed

-   zstd: Tweak decoder allocs. by [@&#8203;klauspost](https://github.com/klauspost) in [https://github.com/klauspost/compress/pull/680](https://github.com/klauspost/compress/pull/680)
-   gzhttp: Always delete `HeaderNoCompression` by [@&#8203;klauspost](https://github.com/klauspost) in [https://github.com/klauspost/compress/pull/683](https://github.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://github.com/renovatebot/renovate).
<!--renovate-debug:eyJjcmVhdGVkSW5WZXIiOiIzNC4xMDkuMSIsInVwZGF0ZWRJblZlciI6IjM0LjEwOS4xIn0=-->
kodiakhq bot referenced this pull request in cloudquery/filetypes Mar 1, 2023
This PR contains the following updates:

| Package | Type | Update | Change |
|---|---|---|---|
| [github.com/klauspost/compress](https://github.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://github.com/klauspost/compress/releases/tag/v1.16.0)

[Compare Source](https://github.com/klauspost/compress/compare/v1.15.15...v1.16.0)

#### What's Changed

-   s2: Add Dictionary support by [@&#8203;klauspost](https://github.com/klauspost) in [https://github.com/klauspost/compress/pull/685](https://github.com/klauspost/compress/pull/685)
-   s2: Add Compression Size Estimate by [@&#8203;klauspost](https://github.com/klauspost) in [https://github.com/klauspost/compress/pull/752](https://github.com/klauspost/compress/pull/752)
-   s2: Add support for custom stream encoder by [@&#8203;klauspost](https://github.com/klauspost) in [https://github.com/klauspost/compress/pull/755](https://github.com/klauspost/compress/pull/755)
-   s2: Add LZ4 block converter by [@&#8203;klauspost](https://github.com/klauspost) in [https://github.com/klauspost/compress/pull/748](https://github.com/klauspost/compress/pull/748)
-   s2: Support io.ReaderAt in ReadSeeker by [@&#8203;klauspost](https://github.com/klauspost) in [https://github.com/klauspost/compress/pull/747](https://github.com/klauspost/compress/pull/747)
-   s2c/s2sx: Use concurrent decoding by [@&#8203;klauspost](https://github.com/klauspost) in [https://github.com/klauspost/compress/pull/746](https://github.com/klauspost/compress/pull/746)
-   tests: Upgrade to Go 1.20 by [@&#8203;klauspost](https://github.com/klauspost) in [https://github.com/klauspost/compress/pull/749](https://github.com/klauspost/compress/pull/749)
-   Update all (command) dependencies by [@&#8203;klauspost](https://github.com/klauspost) in [https://github.com/klauspost/compress/pull/758](https://github.com/klauspost/compress/pull/758)

**Full Changelog**: klauspost/compress@v1.15.15...v1.16.0

### [`v1.15.15`](https://github.com/klauspost/compress/releases/tag/v1.15.15)

[Compare Source](https://github.com/klauspost/compress/compare/v1.15.14...v1.15.15)

#### What's Changed

-   zstd: Add delta encoding support by [@&#8203;greatroar](https://github.com/greatroar) in [https://github.com/klauspost/compress/pull/728](https://github.com/klauspost/compress/pull/728)
-   huff0: Reduce bounds checking by [@&#8203;greatroar](https://github.com/greatroar) in [https://github.com/klauspost/compress/pull/734](https://github.com/klauspost/compress/pull/734)
-   huff0: Assembler improvements by [@&#8203;greatroar](https://github.com/greatroar) in [https://github.com/klauspost/compress/pull/736](https://github.com/klauspost/compress/pull/736)
-   deflate: Improve level 7-9 by [@&#8203;klauspost](https://github.com/klauspost) in [https://github.com/klauspost/compress/pull/739](https://github.com/klauspost/compress/pull/739)
-   gzhttp: Add SuffixETag() and DropETag() options to prevent ETag collisions on compressed responses by [@&#8203;willbicks](https://github.com/willbicks) in [https://github.com/klauspost/compress/pull/740](https://github.com/klauspost/compress/pull/740)
-   zstd: Don't allocate dataStorage when using byteBuf by [@&#8203;klauspost](https://github.com/klauspost) in [https://github.com/klauspost/compress/pull/741](https://github.com/klauspost/compress/pull/741)
-   huff0: Speed up compression of short blocks by [@&#8203;greatroar](https://github.com/greatroar) in [https://github.com/klauspost/compress/pull/744](https://github.com/klauspost/compress/pull/744)
-   zstd: Handle dicts by pointer, always by [@&#8203;greatroar](https://github.com/greatroar) in [https://github.com/klauspost/compress/pull/743](https://github.com/klauspost/compress/pull/743)
-   fse: Optimize compression by [@&#8203;greatroar](https://github.com/greatroar) in [https://github.com/klauspost/compress/pull/745](https://github.com/klauspost/compress/pull/745)
-   Retract v1.14.1-v.1.14.3 by [@&#8203;klauspost](https://github.com/klauspost) in [https://github.com/klauspost/compress/pull/742](https://github.com/klauspost/compress/pull/742)

#### New Contributors

-   [@&#8203;willbicks](https://github.com/willbicks) made their first contribution in [https://github.com/klauspost/compress/pull/740](https://github.com/klauspost/compress/pull/740)

**Full Changelog**: klauspost/compress@v1.15.14...v1.15.15

### [`v1.15.14`](https://github.com/klauspost/compress/releases/tag/v1.15.14)

[Compare Source](https://github.com/klauspost/compress/compare/v1.15.13...v1.15.14)

#### What's Changed

-   flate: Improve speed in big stateless blocks. by [@&#8203;klauspost](https://github.com/klauspost) in [https://github.com/klauspost/compress/pull/718](https://github.com/klauspost/compress/pull/718)
-   zstd: Trigger BCE by switching on lengths by [@&#8203;greatroar](https://github.com/greatroar) in [https://github.com/klauspost/compress/pull/716](https://github.com/klauspost/compress/pull/716)
-   zstd: Shave some instructions off the amd64 asm by [@&#8203;greatroar](https://github.com/greatroar) in [https://github.com/klauspost/compress/pull/720](https://github.com/klauspost/compress/pull/720)
-   export NoGzipResponseWriter for custom ResponseWriter wrappers by [@&#8203;harshavardhana](https://github.com/harshavardhana) in [https://github.com/klauspost/compress/pull/722](https://github.com/klauspost/compress/pull/722)
-   s2: Add example for indexing and existing stream by [@&#8203;klauspost](https://github.com/klauspost) in [https://github.com/klauspost/compress/pull/723](https://github.com/klauspost/compress/pull/723)
-   tests: Tweak fuzz tests by [@&#8203;klauspost](https://github.com/klauspost) in [https://github.com/klauspost/compress/pull/719](https://github.com/klauspost/compress/pull/719)

#### New Contributors

-   [@&#8203;harshavardhana](https://github.com/harshavardhana) made their first contribution in [https://github.com/klauspost/compress/pull/722](https://github.com/klauspost/compress/pull/722)

**Full Changelog**: klauspost/compress@v1.15.13...v1.15.14

### [`v1.15.13`](https://github.com/klauspost/compress/releases/tag/v1.15.13)

[Compare Source](https://github.com/klauspost/compress/compare/v1.15.12...v1.15.13)

#### What's Changed

-   zstd: Add MaxEncodedSize to encoder by [@&#8203;klauspost](https://github.com/klauspost) in [https://github.com/klauspost/compress/pull/691](https://github.com/klauspost/compress/pull/691)
-   zstd: Improve "best" end search by [@&#8203;klauspost](https://github.com/klauspost) in [https://github.com/klauspost/compress/pull/693](https://github.com/klauspost/compress/pull/693)
-   zstd: Replace bytes.Equal with smaller comparisons by [@&#8203;greatroar](https://github.com/greatroar) in [https://github.com/klauspost/compress/pull/695](https://github.com/klauspost/compress/pull/695)
-   zstd: Faster CRC checking/skipping by [@&#8203;greatroar](https://github.com/greatroar) in [https://github.com/klauspost/compress/pull/696](https://github.com/klauspost/compress/pull/696)
-   zstd: Rewrite matchLen to make it inlineable by [@&#8203;greatroar](https://github.com/greatroar) in [https://github.com/klauspost/compress/pull/701](https://github.com/klauspost/compress/pull/701)
-   zstd: Write table clearing in a way that the compiler recognizes by [@&#8203;greatroar](https://github.com/greatroar) in [https://github.com/klauspost/compress/pull/702](https://github.com/klauspost/compress/pull/702)
-   zstd: Use individual reset threshold by [@&#8203;klauspost](https://github.com/klauspost) in [https://github.com/klauspost/compress/pull/703](https://github.com/klauspost/compress/pull/703)
-   huff0: Check for zeros earlier in Scratch.countSimple by [@&#8203;greatroar](https://github.com/greatroar) in [https://github.com/klauspost/compress/pull/704](https://github.com/klauspost/compress/pull/704)
-   zstd: Improve best compression's match selection by [@&#8203;greatroar](https://github.com/greatroar) in [https://github.com/klauspost/compress/pull/705](https://github.com/klauspost/compress/pull/705)
-   zstd: Select best match using selection trees by [@&#8203;greatroar](https://github.com/greatroar) in [https://github.com/klauspost/compress/pull/706](https://github.com/klauspost/compress/pull/706)
-   zstd: sync xxhash with final accepted patch upstream by [@&#8203;lizthegrey](https://github.com/lizthegrey) in [https://github.com/klauspost/compress/pull/707](https://github.com/klauspost/compress/pull/707)
-   zstd: Import xxhash v2.2.0 by [@&#8203;greatroar](https://github.com/greatroar) in [https://github.com/klauspost/compress/pull/708](https://github.com/klauspost/compress/pull/708)

**Full Changelog**: klauspost/compress@v1.15.12...v1.15.13

### [`v1.15.12`](https://github.com/klauspost/compress/releases/tag/v1.15.12)

[Compare Source](https://github.com/klauspost/compress/compare/v1.15.11...v1.15.12)

#### What's Changed

-   zstd: Tweak decoder allocs. by [@&#8203;klauspost](https://github.com/klauspost) in [https://github.com/klauspost/compress/pull/680](https://github.com/klauspost/compress/pull/680)
-   gzhttp: Always delete `HeaderNoCompression` by [@&#8203;klauspost](https://github.com/klauspost) in [https://github.com/klauspost/compress/pull/683](https://github.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://github.com/renovatebot/renovate).
<!--renovate-debug:eyJjcmVhdGVkSW5WZXIiOiIzNC4xMDkuMSIsInVwZGF0ZWRJblZlciI6IjM0LjE1NC4wIn0=-->
Sign up for free to join this conversation on GitHub. Already have an account? Sign in to comment
Labels
None yet
Projects
None yet
Development

Successfully merging this pull request may close these issues.

2 participants