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

zstd: Faster CRC checking/skipping #696

Merged
merged 2 commits into from
Nov 25, 2022
Merged

Conversation

greatroar
Copy link
Contributor

Two patches:

  • check ignoreChecksum once in Decoder.nextBlock and skip the final bit of computation when it's not needed (restic uses zstd without CRC)
  • do the actual check a bit faster and save some allocations by storing the CRC as a uint32 instead of a slice

See second commit for benchmark figures.

Decoder.nextBlock no longer calls the checksum finalizer if not
necessary.
Copy link
Owner

@klauspost klauspost left a comment

Choose a reason for hiding this comment

The reason will be displayed to describe this comment to others. Learn more.

Just a minor safety check.

zstd/decoder.go Show resolved Hide resolved
@greatroar greatroar force-pushed the checkcrc branch 3 times, most recently from 0e2afcc to 0ffe128 Compare November 24, 2022 19:00
zstd/decoder.go Outdated Show resolved Hide resolved
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.
Copy link
Owner

@klauspost klauspost left a comment

Choose a reason for hiding this comment

The reason will be displayed to describe this comment to others. Learn more.

LGTM

@klauspost klauspost merged commit fae4e3f into klauspost:master Nov 25, 2022
@greatroar greatroar deleted the checkcrc branch November 25, 2022 11:11
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://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 [@&#8203;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 [@&#8203;greatroar](https://togithub.com/greatroar) in [https://github.com/klauspost/compress/pull/734](https://togithub.com/klauspost/compress/pull/734)
-   huff0: Assembler improvements by [@&#8203;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 [@&#8203;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 [@&#8203;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 [@&#8203;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 [@&#8203;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 [@&#8203;greatroar](https://togithub.com/greatroar) in [https://github.com/klauspost/compress/pull/743](https://togithub.com/klauspost/compress/pull/743)
-   fse: Optimize compression by [@&#8203;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 [@&#8203;klauspost](https://togithub.com/klauspost) in [https://github.com/klauspost/compress/pull/742](https://togithub.com/klauspost/compress/pull/742)

##### New Contributors

-   [@&#8203;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 [@&#8203;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 [@&#8203;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 [@&#8203;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 [@&#8203;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 [@&#8203;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 [@&#8203;klauspost](https://togithub.com/klauspost) in [https://github.com/klauspost/compress/pull/719](https://togithub.com/klauspost/compress/pull/719)

#### New Contributors

-   [@&#8203;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 [@&#8203;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 [@&#8203;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 [@&#8203;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 [@&#8203;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 [@&#8203;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 [@&#8203;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 [@&#8203;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 [@&#8203;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 [@&#8203;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 [@&#8203;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 [@&#8203;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 [@&#8203;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 [@&#8203;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 [@&#8203;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=-->
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://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 [@&#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

### [`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 [@&#8203;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 [@&#8203;greatroar](https://togithub.com/greatroar) in [https://github.com/klauspost/compress/pull/734](https://togithub.com/klauspost/compress/pull/734)
-   huff0: Assembler improvements by [@&#8203;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 [@&#8203;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 [@&#8203;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 [@&#8203;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 [@&#8203;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 [@&#8203;greatroar](https://togithub.com/greatroar) in [https://github.com/klauspost/compress/pull/743](https://togithub.com/klauspost/compress/pull/743)
-   fse: Optimize compression by [@&#8203;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 [@&#8203;klauspost](https://togithub.com/klauspost) in [https://github.com/klauspost/compress/pull/742](https://togithub.com/klauspost/compress/pull/742)

#### New Contributors

-   [@&#8203;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 [@&#8203;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 [@&#8203;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 [@&#8203;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 [@&#8203;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 [@&#8203;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 [@&#8203;klauspost](https://togithub.com/klauspost) in [https://github.com/klauspost/compress/pull/719](https://togithub.com/klauspost/compress/pull/719)

#### New Contributors

-   [@&#8203;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 [@&#8203;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 [@&#8203;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 [@&#8203;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 [@&#8203;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 [@&#8203;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 [@&#8203;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 [@&#8203;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 [@&#8203;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 [@&#8203;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 [@&#8203;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 [@&#8203;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 [@&#8203;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 [@&#8203;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 [@&#8203;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=-->
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