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zstd: Speed up + improve best encoder #776

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merged 1 commit into from
Mar 13, 2023
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name                              old speed      new speed      delta
Encoder_EncodeAllSimple/best-8    14.8MB/s ± 3%  20.7MB/s ± 3%   +39.53%  (p=0.000 n=17+19)
Encoder_EncodeAllSimple4K/best-8  11.8MB/s ± 1%  19.2MB/s ± 6%   +62.17%  (p=0.000 n=20+20)

name                              old alloc/op   new alloc/op   delta
Encoder_EncodeAllSimple/best-8       14.0B ± 0%     10.2B ± 8%   -27.07%  (p=0.000 n=16+19)
Encoder_EncodeAllSimple4K/best-8     1.00B ± 0%     0.00B       -100.00%  (p=0.000 n=20+19)

Also, compressing enwik9 takes 6.375% less wall clock time.

Output from silesia corpus and enwik9 is about .05% bigger, due to the different order in which comparisons are done:

dickens    3222189    3220994 (× 0.99963)
enwik9   259699309  259846164 (× 1.00057)
mozilla   16912341   16912437 (× 1.00001)
mr         3505553    3502823 (× 0.99922)
nci        2289871    2306320 (× 1.00718)
ooffice    2896410    2896907 (× 1.00017)
osdb       3390871    3390548 (× 0.99990)
reymont    1656006    1657380 (× 1.00083)
samba      4326783    4329898 (× 1.00072)
sao        5416932    5416648 (× 0.99995)
webster    9966351    9972808 (× 1.00065)
xml         538378     542277 (× 1.00724)
x-ray      5733061    5733121 (× 1.00001)
total    319554055  319728325 (× 1.00055)

This is still smaller than before #705.

name                              old speed      new speed      delta
Encoder_EncodeAllSimple/best-8    14.8MB/s ± 3%  20.7MB/s ± 3%   +39.53%  (p=0.000 n=17+19)
Encoder_EncodeAllSimple4K/best-8  11.8MB/s ± 1%  19.2MB/s ± 6%   +62.17%  (p=0.000 n=20+20)

name                              old alloc/op   new alloc/op   delta
Encoder_EncodeAllSimple/best-8       14.0B ± 0%     10.2B ± 8%   -27.07%  (p=0.000 n=16+19)
Encoder_EncodeAllSimple4K/best-8     1.00B ± 0%     0.00B       -100.00%  (p=0.000 n=20+19)

Also, compressing enwik9 takes 6.375% less wall clock time.

Output from silesia corpus and enwik9 is about .05% bigger, due to the
different order in which comparisons are done:

dickens    3222189    3220994 (× 0.99963)
enwik9   259699309  259846164 (× 1.00057)
mozilla   16912341   16912437 (× 1.00001)
mr         3505553    3502823 (× 0.99922)
nci        2289871    2306320 (× 1.00718)
ooffice    2896410    2896907 (× 1.00017)
osdb       3390871    3390548 (× 0.99990)
reymont    1656006    1657380 (× 1.00083)
samba      4326783    4329898 (× 1.00072)
sao        5416932    5416648 (× 0.99995)
webster    9966351    9972808 (× 1.00065)
xml         538378     542277 (× 1.00724)
x-ray      5733061    5733121 (× 1.00001)
total    319554055  319728325 (× 1.00055)

This is still smaller than before klauspost#705.
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Nice. I will do a bit of testing to see if there are any significant regressions.

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Looks very good. I'd say the compression improvement is much more important than the speed improvement.

Good job. Thanks for the valuable contribution!

@klauspost klauspost changed the title zstd: Speed up best encoder zstd: Speed up + improve best encoder Mar 13, 2023
@klauspost klauspost merged commit 80b543b into klauspost:master Mar 13, 2023
greatroar added a commit to greatroar/compress that referenced this pull request Mar 19, 2023
The SpeedBestCompression encoder now extends matches backwards before
estimating their encoded size, rather than doing this after selecting
the best match. This is a bit slower, but produces smaller output.

Benchmarks on amd64:

name                              old speed      new speed      delta
Encoder_EncodeAllSimple/best-8    20.7MB/s ± 3%  19.0MB/s ± 1%  -8.04%  (p=0.000 n=19+18)
Encoder_EncodeAllSimple4K/best-8  19.2MB/s ± 6%  17.9MB/s ± 1%  -6.86%  (p=0.000 n=20+20)

Output sizes on Silesia and enwik9:

dickens    3220994    3179697 (× 0.987179)
enwik9   259846164  257481474 (× 0.990900)
mozilla   16912437   16895142 (× 0.998977)
mr         3502823    3473770 (× 0.991706)
nci        2306320    2300580 (× 0.997511)
ooffice    2896907    2888715 (× 0.997172)
osdb       3390548    3368411 (× 0.993471)
reymont    1657380    1639490 (× 0.989206)
samba      4329898    4315020 (× 0.996564)
sao        5416648    5383855 (× 0.993946)
webster    9972808    9887560 (× 0.991452)
xml         542277     541018 (× 0.997678)
x-ray      5733121    5681186 (× 0.990941)
total    319728325  317035918 (× 0.991579)

Wall clock time for compressing enwik9 goes up a bit, but is still close
to what is was before klauspost#776.
greatroar added a commit to greatroar/compress that referenced this pull request Mar 19, 2023
The SpeedBestCompression encoder now extends matches backwards before
estimating their encoded size, rather than doing this after selecting
the best match. This is a bit slower, but produces smaller output.

Benchmarks on amd64:

name                              old speed      new speed      delta
Encoder_EncodeAllSimple/best-8    20.7MB/s ± 3%  19.0MB/s ± 1%  -8.04%  (p=0.000 n=19+18)
Encoder_EncodeAllSimple4K/best-8  19.2MB/s ± 6%  17.9MB/s ± 1%  -6.86%  (p=0.000 n=20+20)

Output sizes on Silesia and enwik9:

dickens    3220994    3179697 (× 0.987179)
enwik9   259846164  257481474 (× 0.990900)
mozilla   16912437   16895142 (× 0.998977)
mr         3502823    3473770 (× 0.991706)
nci        2306320    2300580 (× 0.997511)
ooffice    2896907    2888715 (× 0.997172)
osdb       3390548    3368411 (× 0.993471)
reymont    1657380    1639490 (× 0.989206)
samba      4329898    4315020 (× 0.996564)
sao        5416648    5383855 (× 0.993946)
webster    9972808    9887560 (× 0.991452)
xml         542277     541018 (× 0.997678)
x-ray      5733121    5681186 (× 0.990941)
total    319728325  317035918 (× 0.991579)

Wall clock time for compressing enwik9 goes up a bit, but is still close
to what is was before klauspost#776.
kodiakhq bot referenced this pull request in cloudquery/filetypes Apr 1, 2023
This PR contains the following updates:

| Package | Type | Update | Change |
|---|---|---|---|
| [github.com/klauspost/compress](https://togithub.com/klauspost/compress) | indirect | patch | `v1.16.0` -> `v1.16.3` |

---

### ⚠ 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>

### [`v1.16.3`](https://togithub.com/klauspost/compress/releases/tag/v1.16.3)

[Compare Source](https://togithub.com/klauspost/compress/compare/v1.16.2...v1.16.3)

**Full Changelog**: klauspost/compress@v1.16.2...v1.16.3

### [`v1.16.2`](https://togithub.com/klauspost/compress/releases/tag/v1.16.2)

[Compare Source](https://togithub.com/klauspost/compress/compare/v1.16.1...v1.16.2)

#### What's Changed

-   Fix Goreleaser permissions by [@&#8203;klauspost](https://togithub.com/klauspost) in [https://github.com/klauspost/compress/pull/777](https://togithub.com/klauspost/compress/pull/777)

**Full Changelog**: klauspost/compress@v1.16.1...v1.16.2

### [`v1.16.1`](https://togithub.com/klauspost/compress/releases/tag/v1.16.1)

[Compare Source](https://togithub.com/klauspost/compress/compare/v1.16.0...v1.16.1)

#### What's Changed

-   zstd: Speed up + improve best encoder by [@&#8203;greatroar](https://togithub.com/greatroar) in [https://github.com/klauspost/compress/pull/776](https://togithub.com/klauspost/compress/pull/776)
-   s2: Add Intel LZ4s converter by [@&#8203;klauspost](https://togithub.com/klauspost) in [https://github.com/klauspost/compress/pull/766](https://togithub.com/klauspost/compress/pull/766)
-   gzhttp: Add BREACH mitigation by [@&#8203;klauspost](https://togithub.com/klauspost) in [https://github.com/klauspost/compress/pull/762](https://togithub.com/klauspost/compress/pull/762)
-   gzhttp: Remove a few unneeded allocs by [@&#8203;klauspost](https://togithub.com/klauspost) in [https://github.com/klauspost/compress/pull/768](https://togithub.com/klauspost/compress/pull/768)
-   gzhttp: Fix crypto/rand.Read usage by [@&#8203;greatroar](https://togithub.com/greatroar) in [https://github.com/klauspost/compress/pull/770](https://togithub.com/klauspost/compress/pull/770)
-   gzhttp: Use SHA256 as paranoid option by [@&#8203;klauspost](https://togithub.com/klauspost) in [https://github.com/klauspost/compress/pull/769](https://togithub.com/klauspost/compress/pull/769)
-   gzhttp: Use strings for randomJitter to skip a copy by [@&#8203;greatroar](https://togithub.com/greatroar) in [https://github.com/klauspost/compress/pull/767](https://togithub.com/klauspost/compress/pull/767)
-   zstd: Fix ineffective block size check by [@&#8203;klauspost](https://togithub.com/klauspost) in [https://github.com/klauspost/compress/pull/771](https://togithub.com/klauspost/compress/pull/771)
-   zstd: Check FSE init values by [@&#8203;klauspost](https://togithub.com/klauspost) in [https://github.com/klauspost/compress/pull/772](https://togithub.com/klauspost/compress/pull/772)
-   zstd: Report EOF from byteBuf.readBig by [@&#8203;greatroar](https://togithub.com/greatroar) in [https://github.com/klauspost/compress/pull/773](https://togithub.com/klauspost/compress/pull/773)
-   huff0: Speed up compress1xDo by [@&#8203;greatroar](https://togithub.com/greatroar) in [https://github.com/klauspost/compress/pull/774](https://togithub.com/klauspost/compress/pull/774)
-   tests: Remove fuzz printing by [@&#8203;klauspost](https://togithub.com/klauspost) in [https://github.com/klauspost/compress/pull/775](https://togithub.com/klauspost/compress/pull/775)
-   tests: Add CICD Fuzz testing by [@&#8203;klauspost](https://togithub.com/klauspost) in [https://github.com/klauspost/compress/pull/763](https://togithub.com/klauspost/compress/pull/763)
-   ci: set minimal permissions to GitHub Workflows by [@&#8203;diogoteles08](https://togithub.com/diogoteles08) in [https://github.com/klauspost/compress/pull/765](https://togithub.com/klauspost/compress/pull/765)

#### New Contributors

-   [@&#8203;diogoteles08](https://togithub.com/diogoteles08) made their first contribution in [https://github.com/klauspost/compress/pull/765](https://togithub.com/klauspost/compress/pull/765)

**Full Changelog**: klauspost/compress@v1.16.0...v1.16.1

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kodiakhq bot referenced this pull request in cloudquery/plugin-sdk Jul 1, 2023
)

This PR contains the following updates:

| Package | Type | Update | Change |
|---|---|---|---|
| [github.com/klauspost/compress](https://togithub.com/klauspost/compress) | indirect | patch | `v1.16.0` -> `v1.16.6` |

---

### Release Notes

<details>
<summary>klauspost/compress (github.com/klauspost/compress)</summary>

### [`v1.16.6`](https://togithub.com/klauspost/compress/releases/tag/v1.16.6)

[Compare Source](https://togithub.com/klauspost/compress/compare/v1.16.5...v1.16.6)

#### What's Changed

-   zstd: correctly ignore WithEncoderPadding(1) by [@&#8203;ianlancetaylor](https://togithub.com/ianlancetaylor) in [https://github.com/klauspost/compress/pull/806](https://togithub.com/klauspost/compress/pull/806)
-   gzhttp: Handle informational headers by [@&#8203;rtribotte](https://togithub.com/rtribotte) in [https://github.com/klauspost/compress/pull/815](https://togithub.com/klauspost/compress/pull/815)
-   zstd: Add amd64 match length assembly by [@&#8203;klauspost](https://togithub.com/klauspost) in [https://github.com/klauspost/compress/pull/824](https://togithub.com/klauspost/compress/pull/824)
-   s2: Improve Better compression slightly by [@&#8203;klauspost](https://togithub.com/klauspost) in [https://github.com/klauspost/compress/pull/663](https://togithub.com/klauspost/compress/pull/663)
-   s2: Clean up matchlen assembly by [@&#8203;klauspost](https://togithub.com/klauspost) in [https://github.com/klauspost/compress/pull/825](https://togithub.com/klauspost/compress/pull/825)

#### New Contributors

-   [@&#8203;rtribotte](https://togithub.com/rtribotte) made their first contribution in [https://github.com/klauspost/compress/pull/815](https://togithub.com/klauspost/compress/pull/815)
-   [@&#8203;dveeden](https://togithub.com/dveeden) made their first contribution in [https://github.com/klauspost/compress/pull/816](https://togithub.com/klauspost/compress/pull/816)

**Full Changelog**: klauspost/compress@v1.16.5...v1.16.6

### [`v1.16.5`](https://togithub.com/klauspost/compress/releases/tag/v1.16.5)

[Compare Source](https://togithub.com/klauspost/compress/compare/v1.16.4...v1.16.5)

#### What's Changed

-   zstd: readByte needs to use io.ReadFull by [@&#8203;jnoxon](https://togithub.com/jnoxon) in [https://github.com/klauspost/compress/pull/802](https://togithub.com/klauspost/compress/pull/802)
-   gzip: Fix WriterTo after initial read by [@&#8203;klauspost](https://togithub.com/klauspost) in [https://github.com/klauspost/compress/pull/804](https://togithub.com/klauspost/compress/pull/804)

#### New Contributors

-   [@&#8203;jnoxon](https://togithub.com/jnoxon) made their first contribution in [https://github.com/klauspost/compress/pull/802](https://togithub.com/klauspost/compress/pull/802)

**Full Changelog**: klauspost/compress@v1.16.4...v1.16.5

### [`v1.16.4`](https://togithub.com/klauspost/compress/releases/tag/v1.16.4)

[Compare Source](https://togithub.com/klauspost/compress/compare/v1.16.3...v1.16.4)

#### What's Changed

-   s2: Fix huge block overflow by [@&#8203;klauspost](https://togithub.com/klauspost) in [https://github.com/klauspost/compress/pull/779](https://togithub.com/klauspost/compress/pull/779)
-   s2: Allow CustomEncoder fallback by [@&#8203;klauspost](https://togithub.com/klauspost) in [https://github.com/klauspost/compress/pull/780](https://togithub.com/klauspost/compress/pull/780)
-   zstd: Fix amd64 not always detecting corrupt data by [@&#8203;klauspost](https://togithub.com/klauspost) in [https://github.com/klauspost/compress/pull/785](https://togithub.com/klauspost/compress/pull/785)
-   zstd: Improve zstd best efficiency by [@&#8203;klauspost](https://togithub.com/klauspost) and [@&#8203;greatroar](https://togithub.com/greatroar) in [https://github.com/klauspost/compress/pull/784](https://togithub.com/klauspost/compress/pull/784)
-   zstd: Make load(32|64)32 safer and smaller by [@&#8203;greatroar](https://togithub.com/greatroar) in [https://github.com/klauspost/compress/pull/788](https://togithub.com/klauspost/compress/pull/788)
-   zstd: Fix quick reject on long backmatches by [@&#8203;klauspost](https://togithub.com/klauspost) in [https://github.com/klauspost/compress/pull/787](https://togithub.com/klauspost/compress/pull/787)
-   zstd: Revert table size change  by [@&#8203;klauspost](https://togithub.com/klauspost) in [https://github.com/klauspost/compress/pull/789](https://togithub.com/klauspost/compress/pull/789)
-   zstd: Respect WithAllLitEntropyCompression by [@&#8203;klauspost](https://togithub.com/klauspost) in [https://github.com/klauspost/compress/pull/792](https://togithub.com/klauspost/compress/pull/792)
-   zstd: Fix back-referenced offset by [@&#8203;klauspost](https://togithub.com/klauspost) in [https://github.com/klauspost/compress/pull/793](https://togithub.com/klauspost/compress/pull/793)
-   zstd: Load source value at start of loop by [@&#8203;greatroar](https://togithub.com/greatroar) in [https://github.com/klauspost/compress/pull/794](https://togithub.com/klauspost/compress/pull/794)
-   zstd: Shorten checksum code by [@&#8203;greatroar](https://togithub.com/greatroar) in [https://github.com/klauspost/compress/pull/795](https://togithub.com/klauspost/compress/pull/795)
-   zstd: Fix fallback on incompressible block by [@&#8203;klauspost](https://togithub.com/klauspost) in [https://github.com/klauspost/compress/pull/798](https://togithub.com/klauspost/compress/pull/798)
-   gzhttp: Suppport ResponseWriter Unwrap() in gzhttp handler by [@&#8203;jgimenez](https://togithub.com/jgimenez) in [https://github.com/klauspost/compress/pull/799](https://togithub.com/klauspost/compress/pull/799)

#### New Contributors

-   [@&#8203;jgimenez](https://togithub.com/jgimenez) made their first contribution in [https://github.com/klauspost/compress/pull/799](https://togithub.com/klauspost/compress/pull/799)

**Full Changelog**: klauspost/compress@v1.16.3...v1.16.4

### [`v1.16.3`](https://togithub.com/klauspost/compress/releases/tag/v1.16.3)

[Compare Source](https://togithub.com/klauspost/compress/compare/v1.16.2...v1.16.3)

**Full Changelog**: klauspost/compress@v1.16.2...v1.16.3

### [`v1.16.2`](https://togithub.com/klauspost/compress/releases/tag/v1.16.2)

[Compare Source](https://togithub.com/klauspost/compress/compare/v1.16.1...v1.16.2)

#### What's Changed

-   Fix Goreleaser permissions by [@&#8203;klauspost](https://togithub.com/klauspost) in [https://github.com/klauspost/compress/pull/777](https://togithub.com/klauspost/compress/pull/777)

**Full Changelog**: klauspost/compress@v1.16.1...v1.16.2

### [`v1.16.1`](https://togithub.com/klauspost/compress/releases/tag/v1.16.1)

[Compare Source](https://togithub.com/klauspost/compress/compare/v1.16.0...v1.16.1)

#### What's Changed

-   zstd: Speed up + improve best encoder by [@&#8203;greatroar](https://togithub.com/greatroar) in [https://github.com/klauspost/compress/pull/776](https://togithub.com/klauspost/compress/pull/776)
-   s2: Add Intel LZ4s converter by [@&#8203;klauspost](https://togithub.com/klauspost) in [https://github.com/klauspost/compress/pull/766](https://togithub.com/klauspost/compress/pull/766)
-   gzhttp: Add BREACH mitigation by [@&#8203;klauspost](https://togithub.com/klauspost) in [https://github.com/klauspost/compress/pull/762](https://togithub.com/klauspost/compress/pull/762)
-   gzhttp: Remove a few unneeded allocs by [@&#8203;klauspost](https://togithub.com/klauspost) in [https://github.com/klauspost/compress/pull/768](https://togithub.com/klauspost/compress/pull/768)
-   gzhttp: Fix crypto/rand.Read usage by [@&#8203;greatroar](https://togithub.com/greatroar) in [https://github.com/klauspost/compress/pull/770](https://togithub.com/klauspost/compress/pull/770)
-   gzhttp: Use SHA256 as paranoid option by [@&#8203;klauspost](https://togithub.com/klauspost) in [https://github.com/klauspost/compress/pull/769](https://togithub.com/klauspost/compress/pull/769)
-   gzhttp: Use strings for randomJitter to skip a copy by [@&#8203;greatroar](https://togithub.com/greatroar) in [https://github.com/klauspost/compress/pull/767](https://togithub.com/klauspost/compress/pull/767)
-   zstd: Fix ineffective block size check by [@&#8203;klauspost](https://togithub.com/klauspost) in [https://github.com/klauspost/compress/pull/771](https://togithub.com/klauspost/compress/pull/771)
-   zstd: Check FSE init values by [@&#8203;klauspost](https://togithub.com/klauspost) in [https://github.com/klauspost/compress/pull/772](https://togithub.com/klauspost/compress/pull/772)
-   zstd: Report EOF from byteBuf.readBig by [@&#8203;greatroar](https://togithub.com/greatroar) in [https://github.com/klauspost/compress/pull/773](https://togithub.com/klauspost/compress/pull/773)
-   huff0: Speed up compress1xDo by [@&#8203;greatroar](https://togithub.com/greatroar) in [https://github.com/klauspost/compress/pull/774](https://togithub.com/klauspost/compress/pull/774)
-   tests: Remove fuzz printing by [@&#8203;klauspost](https://togithub.com/klauspost) in [https://github.com/klauspost/compress/pull/775](https://togithub.com/klauspost/compress/pull/775)
-   tests: Add CICD Fuzz testing by [@&#8203;klauspost](https://togithub.com/klauspost) in [https://github.com/klauspost/compress/pull/763](https://togithub.com/klauspost/compress/pull/763)
-   ci: set minimal permissions to GitHub Workflows by [@&#8203;diogoteles08](https://togithub.com/diogoteles08) in [https://github.com/klauspost/compress/pull/765](https://togithub.com/klauspost/compress/pull/765)

#### New Contributors

-   [@&#8203;diogoteles08](https://togithub.com/diogoteles08) made their first contribution in [https://github.com/klauspost/compress/pull/765](https://togithub.com/klauspost/compress/pull/765)

**Full Changelog**: klauspost/compress@v1.16.0...v1.16.1

</details>

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<!--renovate-debug:eyJjcmVhdGVkSW5WZXIiOiIzNS4xNTEuMCIsInVwZGF0ZWRJblZlciI6IjM1LjE1MS4wIiwidGFyZ2V0QnJhbmNoIjoibWFpbiJ9-->
kodiakhq bot referenced this pull request in cloudquery/plugin-pb-go Aug 1, 2023
This PR contains the following updates:

| Package | Type | Update | Change |
|---|---|---|---|
| [github.com/klauspost/compress](https://togithub.com/klauspost/compress) | indirect | minor | `v1.15.15` -> `v1.16.7` |

---

### Release Notes

<details>
<summary>klauspost/compress (github.com/klauspost/compress)</summary>

### [`v1.16.7`](https://togithub.com/klauspost/compress/releases/tag/v1.16.7)

[Compare Source](https://togithub.com/klauspost/compress/compare/v1.16.6...v1.16.7)

#### What's Changed

-   zstd: Fix default level first dictionary encode by [@&#8203;klauspost](https://togithub.com/klauspost) in [https://github.com/klauspost/compress/pull/829](https://togithub.com/klauspost/compress/pull/829)
-   docs: Fix typo in security advisory URL by [@&#8203;vcabbage](https://togithub.com/vcabbage) in [https://github.com/klauspost/compress/pull/830](https://togithub.com/klauspost/compress/pull/830)
-   s2: add GetBufferCapacity() method by [@&#8203;GiedriusS](https://togithub.com/GiedriusS) in [https://github.com/klauspost/compress/pull/832](https://togithub.com/klauspost/compress/pull/832)

#### New Contributors

-   [@&#8203;vcabbage](https://togithub.com/vcabbage) made their first contribution in [https://github.com/klauspost/compress/pull/830](https://togithub.com/klauspost/compress/pull/830)
-   [@&#8203;GiedriusS](https://togithub.com/GiedriusS) made their first contribution in [https://github.com/klauspost/compress/pull/832](https://togithub.com/klauspost/compress/pull/832)

**Full Changelog**: klauspost/compress@v1.16.6...v1.16.7

### [`v1.16.6`](https://togithub.com/klauspost/compress/releases/tag/v1.16.6)

[Compare Source](https://togithub.com/klauspost/compress/compare/v1.16.5...v1.16.6)

#### What's Changed

-   zstd: correctly ignore WithEncoderPadding(1) by [@&#8203;ianlancetaylor](https://togithub.com/ianlancetaylor) in [https://github.com/klauspost/compress/pull/806](https://togithub.com/klauspost/compress/pull/806)
-   gzhttp: Handle informational headers by [@&#8203;rtribotte](https://togithub.com/rtribotte) in [https://github.com/klauspost/compress/pull/815](https://togithub.com/klauspost/compress/pull/815)
-   zstd: Add amd64 match length assembly by [@&#8203;klauspost](https://togithub.com/klauspost) in [https://github.com/klauspost/compress/pull/824](https://togithub.com/klauspost/compress/pull/824)
-   s2: Improve Better compression slightly by [@&#8203;klauspost](https://togithub.com/klauspost) in [https://github.com/klauspost/compress/pull/663](https://togithub.com/klauspost/compress/pull/663)
-   s2: Clean up matchlen assembly by [@&#8203;klauspost](https://togithub.com/klauspost) in [https://github.com/klauspost/compress/pull/825](https://togithub.com/klauspost/compress/pull/825)

#### New Contributors

-   [@&#8203;rtribotte](https://togithub.com/rtribotte) made their first contribution in [https://github.com/klauspost/compress/pull/815](https://togithub.com/klauspost/compress/pull/815)
-   [@&#8203;dveeden](https://togithub.com/dveeden) made their first contribution in [https://github.com/klauspost/compress/pull/816](https://togithub.com/klauspost/compress/pull/816)

**Full Changelog**: klauspost/compress@v1.16.5...v1.16.6

### [`v1.16.5`](https://togithub.com/klauspost/compress/releases/tag/v1.16.5)

[Compare Source](https://togithub.com/klauspost/compress/compare/v1.16.4...v1.16.5)

#### What's Changed

-   zstd: readByte needs to use io.ReadFull by [@&#8203;jnoxon](https://togithub.com/jnoxon) in [https://github.com/klauspost/compress/pull/802](https://togithub.com/klauspost/compress/pull/802)
-   gzip: Fix WriterTo after initial read by [@&#8203;klauspost](https://togithub.com/klauspost) in [https://github.com/klauspost/compress/pull/804](https://togithub.com/klauspost/compress/pull/804)

#### New Contributors

-   [@&#8203;jnoxon](https://togithub.com/jnoxon) made their first contribution in [https://github.com/klauspost/compress/pull/802](https://togithub.com/klauspost/compress/pull/802)

**Full Changelog**: klauspost/compress@v1.16.4...v1.16.5

### [`v1.16.4`](https://togithub.com/klauspost/compress/releases/tag/v1.16.4)

[Compare Source](https://togithub.com/klauspost/compress/compare/v1.16.3...v1.16.4)

#### What's Changed

-   s2: Fix huge block overflow by [@&#8203;klauspost](https://togithub.com/klauspost) in [https://github.com/klauspost/compress/pull/779](https://togithub.com/klauspost/compress/pull/779)
-   s2: Allow CustomEncoder fallback by [@&#8203;klauspost](https://togithub.com/klauspost) in [https://github.com/klauspost/compress/pull/780](https://togithub.com/klauspost/compress/pull/780)
-   zstd: Fix amd64 not always detecting corrupt data by [@&#8203;klauspost](https://togithub.com/klauspost) in [https://github.com/klauspost/compress/pull/785](https://togithub.com/klauspost/compress/pull/785)
-   zstd: Improve zstd best efficiency by [@&#8203;klauspost](https://togithub.com/klauspost) and [@&#8203;greatroar](https://togithub.com/greatroar) in [https://github.com/klauspost/compress/pull/784](https://togithub.com/klauspost/compress/pull/784)
-   zstd: Make load(32|64)32 safer and smaller by [@&#8203;greatroar](https://togithub.com/greatroar) in [https://github.com/klauspost/compress/pull/788](https://togithub.com/klauspost/compress/pull/788)
-   zstd: Fix quick reject on long backmatches by [@&#8203;klauspost](https://togithub.com/klauspost) in [https://github.com/klauspost/compress/pull/787](https://togithub.com/klauspost/compress/pull/787)
-   zstd: Revert table size change  by [@&#8203;klauspost](https://togithub.com/klauspost) in [https://github.com/klauspost/compress/pull/789](https://togithub.com/klauspost/compress/pull/789)
-   zstd: Respect WithAllLitEntropyCompression by [@&#8203;klauspost](https://togithub.com/klauspost) in [https://github.com/klauspost/compress/pull/792](https://togithub.com/klauspost/compress/pull/792)
-   zstd: Fix back-referenced offset by [@&#8203;klauspost](https://togithub.com/klauspost) in [https://github.com/klauspost/compress/pull/793](https://togithub.com/klauspost/compress/pull/793)
-   zstd: Load source value at start of loop by [@&#8203;greatroar](https://togithub.com/greatroar) in [https://github.com/klauspost/compress/pull/794](https://togithub.com/klauspost/compress/pull/794)
-   zstd: Shorten checksum code by [@&#8203;greatroar](https://togithub.com/greatroar) in [https://github.com/klauspost/compress/pull/795](https://togithub.com/klauspost/compress/pull/795)
-   zstd: Fix fallback on incompressible block by [@&#8203;klauspost](https://togithub.com/klauspost) in [https://github.com/klauspost/compress/pull/798](https://togithub.com/klauspost/compress/pull/798)
-   gzhttp: Suppport ResponseWriter Unwrap() in gzhttp handler by [@&#8203;jgimenez](https://togithub.com/jgimenez) in [https://github.com/klauspost/compress/pull/799](https://togithub.com/klauspost/compress/pull/799)

#### New Contributors

-   [@&#8203;jgimenez](https://togithub.com/jgimenez) made their first contribution in [https://github.com/klauspost/compress/pull/799](https://togithub.com/klauspost/compress/pull/799)

**Full Changelog**: klauspost/compress@v1.16.3...v1.16.4

### [`v1.16.3`](https://togithub.com/klauspost/compress/releases/tag/v1.16.3)

[Compare Source](https://togithub.com/klauspost/compress/compare/v1.16.2...v1.16.3)

**Full Changelog**: klauspost/compress@v1.16.2...v1.16.3

### [`v1.16.2`](https://togithub.com/klauspost/compress/releases/tag/v1.16.2)

[Compare Source](https://togithub.com/klauspost/compress/compare/v1.16.1...v1.16.2)

#### What's Changed

-   Fix Goreleaser permissions by [@&#8203;klauspost](https://togithub.com/klauspost) in [https://github.com/klauspost/compress/pull/777](https://togithub.com/klauspost/compress/pull/777)

**Full Changelog**: klauspost/compress@v1.16.1...v1.16.2

### [`v1.16.1`](https://togithub.com/klauspost/compress/releases/tag/v1.16.1)

[Compare Source](https://togithub.com/klauspost/compress/compare/v1.16.0...v1.16.1)

#### What's Changed

-   zstd: Speed up + improve best encoder by [@&#8203;greatroar](https://togithub.com/greatroar) in [https://github.com/klauspost/compress/pull/776](https://togithub.com/klauspost/compress/pull/776)
-   s2: Add Intel LZ4s converter by [@&#8203;klauspost](https://togithub.com/klauspost) in [https://github.com/klauspost/compress/pull/766](https://togithub.com/klauspost/compress/pull/766)
-   gzhttp: Add BREACH mitigation by [@&#8203;klauspost](https://togithub.com/klauspost) in [https://github.com/klauspost/compress/pull/762](https://togithub.com/klauspost/compress/pull/762)
-   gzhttp: Remove a few unneeded allocs by [@&#8203;klauspost](https://togithub.com/klauspost) in [https://github.com/klauspost/compress/pull/768](https://togithub.com/klauspost/compress/pull/768)
-   gzhttp: Fix crypto/rand.Read usage by [@&#8203;greatroar](https://togithub.com/greatroar) in [https://github.com/klauspost/compress/pull/770](https://togithub.com/klauspost/compress/pull/770)
-   gzhttp: Use SHA256 as paranoid option by [@&#8203;klauspost](https://togithub.com/klauspost) in [https://github.com/klauspost/compress/pull/769](https://togithub.com/klauspost/compress/pull/769)
-   gzhttp: Use strings for randomJitter to skip a copy by [@&#8203;greatroar](https://togithub.com/greatroar) in [https://github.com/klauspost/compress/pull/767](https://togithub.com/klauspost/compress/pull/767)
-   zstd: Fix ineffective block size check by [@&#8203;klauspost](https://togithub.com/klauspost) in [https://github.com/klauspost/compress/pull/771](https://togithub.com/klauspost/compress/pull/771)
-   zstd: Check FSE init values by [@&#8203;klauspost](https://togithub.com/klauspost) in [https://github.com/klauspost/compress/pull/772](https://togithub.com/klauspost/compress/pull/772)
-   zstd: Report EOF from byteBuf.readBig by [@&#8203;greatroar](https://togithub.com/greatroar) in [https://github.com/klauspost/compress/pull/773](https://togithub.com/klauspost/compress/pull/773)
-   huff0: Speed up compress1xDo by [@&#8203;greatroar](https://togithub.com/greatroar) in [https://github.com/klauspost/compress/pull/774](https://togithub.com/klauspost/compress/pull/774)
-   tests: Remove fuzz printing by [@&#8203;klauspost](https://togithub.com/klauspost) in [https://github.com/klauspost/compress/pull/775](https://togithub.com/klauspost/compress/pull/775)
-   tests: Add CICD Fuzz testing by [@&#8203;klauspost](https://togithub.com/klauspost) in [https://github.com/klauspost/compress/pull/763](https://togithub.com/klauspost/compress/pull/763)
-   ci: set minimal permissions to GitHub Workflows by [@&#8203;diogoteles08](https://togithub.com/diogoteles08) in [https://github.com/klauspost/compress/pull/765](https://togithub.com/klauspost/compress/pull/765)

#### New Contributors

-   [@&#8203;diogoteles08](https://togithub.com/diogoteles08) made their first contribution in [https://github.com/klauspost/compress/pull/765](https://togithub.com/klauspost/compress/pull/765)

**Full Changelog**: klauspost/compress@v1.16.0...v1.16.1

### [`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 [@&#8203;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 [@&#8203;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 [@&#8203;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 [@&#8203;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 [@&#8203;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 [@&#8203;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 [@&#8203;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 [@&#8203;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

</details>

---

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🔕 **Ignore**: Close this PR and you won't be reminded about this update again.

---

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---

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