imported>Yumeto：使用DisamAssist清理消歧義連結：Go（改連結至Go語言）。

2026-03-02T15:23:43Z

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{{NoteTA|G1=IT|G2=FL}}
{{not|Snappy (包管理器)}}
{{Infobox software
| name = Snappy
| developer = [[Google]]
| frequently updated =
| operating system = [[跨平台]]
| genre = [[数据压缩]]
| programming language = [[C++]]
| license = [[Apache许可证|Apache 2]]（截至1.0.1）/[[New BSD]]
| website = {{URL|https://google.github.io/snappy/}}
| title =
| logo =
| author = [[Jeff Dean]]、Sanjay Ghemawat、Steinar H. Gunderson
| released = {{Start date|2011|03|18}}
| discontinued =
| latest release version = 1.2.1
| latest release date = {{Start date and age|2024|05|22}}
| latest preview version =
| platform = 可移植
| size = 2 MB
| status = 活跃
}}
'''Snappy'''（以前称'''Zippy'''）是[[Google]]基于[[LZ77与LZ78|LZ77]]的思路用[[C++]]语言编写的快速[[数据压缩]]与解压[[程序库]]，并在2011年[[开源]]。<ref>{{Cite web|url=http://www.infoq.com/news/2011/04/Snappy|title=Google Snappy–A Fast Compressing Library|accessdate=August 1, 2011|work=InfoQ|archive-date=2016-03-04|archive-url=https://web.archive.org/web/20160304134022/http://www.infoq.com/news/2011/04/Snappy|dead-url=no}}</ref><ref>{{Cite web |url=http://www.theregister.co.uk/2011/03/24/google_open_sources_snappy/ |title=Google open sources MapReduce compression. |accessdate=2016-07-09 |archive-date=2016-08-22 |archive-url=https://web.archive.org/web/20160822184321/http://www.theregister.co.uk/2011/03/24/google_open_sources_snappy/ |dead-url=no }}</ref>它的目标并非最大压缩率或与其他压缩程序库的兼容性，而是非常高的速度和合理的压缩率。使用一个运行在[[X86-64|64位模式]]下的[[酷睿i7]]处理器的单个核心，压缩速度250 [[码率单位|MB/s]]，解压速度500 MB/s。压缩率比[[gzip]]低20-100%。<ref>{{Cite web|url=https://github.com/google/snappy/blob/master/README|title=Snappy: A fast compressor/decompressor: Readme|accessdate=August 1, 2011|work=[[Google Code]]|deadurl=yes|archiveurl=https://archive.today/20150908105729/https://github.com/google/snappy/blob/master/README|archivedate=2015年9月8日}}</ref>

Snappy广泛应用在Google的项目，例如[[BigTable]]、[[MapReduce]]和Google内部[[遠程過程調用|RPC]]系统的压缩数据。它可在开源项目中使用，例如[[Cassandra]]、{{tsl|en|Couchbase Server|Couchbase}}、[[Apache Hadoop|Hadoop]]、[[LevelDB]]、[[MongoDB]]、[[RocksDB]]、[[Lucene]]、[[Apache Spark|Spark]]和[[InfluxDB]]。<ref>{{Cite web |url=https://google.github.io/snappy/ |title=snappy. |accessdate=2016-07-09 |archive-date=2016-12-18 |archive-url=https://web.archive.org/web/20161218142638/http://google.github.io/snappy/ |dead-url=no }}</ref>解压缩时会检测压缩流中是否存在错误。Snappy不使用[[内联汇编]]并且可移植。

== 接口 ==
Snappy的分发包括C++和C绑定。第三方提供的绑定和移植包括：<ref>{{Cite web |url=https://google.github.io/snappy/ |title=存档副本 |accessdate=2016-07-09 |archive-date=2016-12-18 |archive-url=https://web.archive.org/web/20161218142638/http://google.github.io/snappy/ |dead-url=no }}</ref>
{{div col|content=
* [[C♯|C#]]
* [[Common Lisp]]
* [[Erlang]]
* [[Go語言|Go]]
* [[Haskell]]
* [[Lua]]
* [[Java]]
* [[Node.js]]
* [[Perl]]
* [[PHP]]
* [[Python]]
* [[R语言|R]]
* [[Ruby]]
* [[Rust (编程语言)|Rust]]
* [[Smalltalk]]
* [[OpenCL]]<ref>{{Cite web|url=https://github.com/Xilinx/Vitis_Libraries/tree/master/data_compression|title=Xilinx|website=Xilinx|access-date=2020-06-19|archive-date=2022-03-01|archive-url=https://web.archive.org/web/20220301135856/https://github.com/Xilinx/Vitis_Libraries/tree/master/data_compression}}</ref><ref>{{Cite web|url=https://github.com/InAccel/Applications/tree/master/data_compression|title=InAccel|website=InAccel}}</ref>
}}

== 参考资料 ==
{{Reflist}}

== 外部链接 ==
* [https://groups.google.com/forum/#!forum/snappy-compression Snappy邮件列表]{{Wayback|url=https://groups.google.com/forum/#!forum/snappy-compression |date=20191207213542 }}

{{Compression Methods}}
{{Compression Software Implementations}}
{{Archive formats}}

[[Category:归档格式]]
[[Category:C++函式庫]]
[[Category:自由跨平台軟體]]
[[Category:数据压缩自由软件]]

Snappy - 版本历史

imported>Yumeto：​使用DisamAssist清理消歧義連結：Go（改連結至Go語言）。

imported>Yumeto：使用DisamAssist清理消歧義連結：Go（改連結至Go語言）。