diff options
Diffstat (limited to 'vendor/github.com/klauspost/compress/README.md')
| -rw-r--r-- | vendor/github.com/klauspost/compress/README.md | 51 |
1 files changed, 44 insertions, 7 deletions
diff --git a/vendor/github.com/klauspost/compress/README.md b/vendor/github.com/klauspost/compress/README.md index e8ff994f..0e2dc116 100644 --- a/vendor/github.com/klauspost/compress/README.md +++ b/vendor/github.com/klauspost/compress/README.md @@ -17,6 +17,42 @@ This package provides various compression algorithms. # changelog
+* Mar 3, 2022 (v1.15.0)
+ * zstd: Refactor decoder by @klauspost in [#498](https://github.com/klauspost/compress/pull/498)
+ * zstd: Add stream encoding without goroutines by @klauspost in [#505](https://github.com/klauspost/compress/pull/505)
+ * huff0: Prevent single blocks exceeding 16 bits by @klauspost in[#507](https://github.com/klauspost/compress/pull/507)
+ * flate: Inline literal emission by @klauspost in [#509](https://github.com/klauspost/compress/pull/509)
+ * gzhttp: Add zstd to transport by @klauspost in [#400](https://github.com/klauspost/compress/pull/400)
+ * gzhttp: Make content-type optional by @klauspost in [#510](https://github.com/klauspost/compress/pull/510)
+
+<details>
+ <summary>See Details</summary>
+Both compression and decompression now supports "synchronous" stream operations. This means that whenever "concurrency" is set to 1, they will operate without spawning goroutines.
+
+Stream decompression is now faster on asynchronous, since the goroutine allocation much more effectively splits the workload. On typical streams this will typically use 2 cores fully for decompression. When a stream has finished decoding no goroutines will be left over, so decoders can now safely be pooled and still be garbage collected.
+
+While the release has been extensively tested, it is recommended to testing when upgrading.
+</details>
+
+* Feb 22, 2022 (v1.14.4)
+ * flate: Fix rare huffman only (-2) corruption. [#503](https://github.com/klauspost/compress/pull/503)
+ * zip: Update deprecated CreateHeaderRaw to correctly call CreateRaw by @saracen in [#502](https://github.com/klauspost/compress/pull/502)
+ * zip: don't read data descriptor early by @saracen in [#501](https://github.com/klauspost/compress/pull/501) #501
+ * huff0: Use static decompression buffer up to 30% faster by @klauspost in [#499](https://github.com/klauspost/compress/pull/499) [#500](https://github.com/klauspost/compress/pull/500)
+
+* Feb 17, 2022 (v1.14.3)
+ * flate: Improve fastest levels compression speed ~10% more throughput. [#482](https://github.com/klauspost/compress/pull/482) [#489](https://github.com/klauspost/compress/pull/489) [#490](https://github.com/klauspost/compress/pull/490) [#491](https://github.com/klauspost/compress/pull/491) [#494](https://github.com/klauspost/compress/pull/494) [#478](https://github.com/klauspost/compress/pull/478)
+ * flate: Faster decompression speed, ~5-10%. [#483](https://github.com/klauspost/compress/pull/483)
+ * s2: Faster compression with Go v1.18 and amd64 microarch level 3+. [#484](https://github.com/klauspost/compress/pull/484) [#486](https://github.com/klauspost/compress/pull/486)
+
+* Jan 25, 2022 (v1.14.2)
+ * zstd: improve header decoder by @dsnet [#476](https://github.com/klauspost/compress/pull/476)
+ * zstd: Add bigger default blocks [#469](https://github.com/klauspost/compress/pull/469)
+ * zstd: Remove unused decompression buffer [#470](https://github.com/klauspost/compress/pull/470)
+ * zstd: Fix logically dead code by @ningmingxiao [#472](https://github.com/klauspost/compress/pull/472)
+ * flate: Improve level 7-9 [#471](https://github.com/klauspost/compress/pull/471) [#473](https://github.com/klauspost/compress/pull/473)
+ * zstd: Add noasm tag for xxhash [#475](https://github.com/klauspost/compress/pull/475)
+
* Jan 11, 2022 (v1.14.1)
* s2: Add stream index in [#462](https://github.com/klauspost/compress/pull/462)
* flate: Speed and efficiency improvements in [#439](https://github.com/klauspost/compress/pull/439) [#461](https://github.com/klauspost/compress/pull/461) [#455](https://github.com/klauspost/compress/pull/455) [#452](https://github.com/klauspost/compress/pull/452) [#458](https://github.com/klauspost/compress/pull/458)
@@ -53,6 +89,9 @@ This package provides various compression algorithms. * zstd: Detect short invalid signatures [#382](https://github.com/klauspost/compress/pull/382)
* zstd: Spawn decoder goroutine only if needed. [#380](https://github.com/klauspost/compress/pull/380)
+<details>
+ <summary>See changes to v1.12.x</summary>
+
* May 25, 2021 (v1.12.3)
* deflate: Better/faster Huffman encoding [#374](https://github.com/klauspost/compress/pull/374)
* deflate: Allocate less for history. [#375](https://github.com/klauspost/compress/pull/375)
@@ -74,9 +113,10 @@ This package provides various compression algorithms. * s2c/s2d/s2sx: Always truncate when writing files [#352](https://github.com/klauspost/compress/pull/352)
* zstd: Reduce memory usage further when using [WithLowerEncoderMem](https://pkg.go.dev/github.com/klauspost/compress/zstd#WithLowerEncoderMem) [#346](https://github.com/klauspost/compress/pull/346)
* s2: Fix potential problem with amd64 assembly and profilers [#349](https://github.com/klauspost/compress/pull/349)
+</details>
<details>
- <summary>See changes prior to v1.12.1</summary>
+ <summary>See changes to v1.11.x</summary>
* Mar 26, 2021 (v1.11.13)
* zstd: Big speedup on small dictionary encodes [#344](https://github.com/klauspost/compress/pull/344) [#345](https://github.com/klauspost/compress/pull/345)
@@ -135,7 +175,7 @@ This package provides various compression algorithms. </details>
<details>
- <summary>See changes prior to v1.11.0</summary>
+ <summary>See changes to v1.10.x</summary>
* July 8, 2020 (v1.10.11)
* zstd: Fix extra block when compressing with ReadFrom. [#278](https://github.com/klauspost/compress/pull/278)
@@ -297,11 +337,6 @@ This package provides various compression algorithms. # deflate usage
-* [High Throughput Benchmark](http://blog.klauspost.com/go-gzipdeflate-benchmarks/).
-* [Small Payload/Webserver Benchmarks](http://blog.klauspost.com/gzip-performance-for-go-webservers/).
-* [Linear Time Compression](http://blog.klauspost.com/constant-time-gzipzip-compression/).
-* [Re-balancing Deflate Compression Levels](https://blog.klauspost.com/rebalancing-deflate-compression-levels/)
-
The packages are drop-in replacements for standard libraries. Simply replace the import path to use them:
| old import | new import | Documentation
@@ -323,6 +358,8 @@ Memory usage is typically 1MB for a Writer. stdlib is in the same range. If you expect to have a lot of concurrently allocated Writers consider using
the stateless compress described below.
+For compression performance, see: [this spreadsheet](https://docs.google.com/spreadsheets/d/1nuNE2nPfuINCZJRMt6wFWhKpToF95I47XjSsc-1rbPQ/edit?usp=sharing).
+
# Stateless compression
This package offers stateless compression as a special option for gzip/deflate.
|