apurtell edited a comment on pull request #3691: URL: https://github.com/apache/hbase/pull/3691#issuecomment-931532069
**ITLCC Compression Test** s3n://commoncrawl/crawl-data/CC-MAIN-2021-10/segments/1614178347293.1/warc/CC-MAIN-20210224165708-20210224195708-00000.warc.gz (310,856 rows) The aircompressor pure Java compressors are competitive with JNI integrations and provide reasonable fallback options when native support e.g. dynamic link libraries cannot be made available. The fastest option overall is lz4-java. It offers both excellent compression and decompression performance and a reasonable compression ratio. Snappy options are also very fast but slightly less effective. Note: A deflate codec implementation is not proposed as part of this contribution. It is just a simple integration of the Java runtime environment's java.util.zip.Deflater and java.util.zip.Inflater offered as a baseline comparison. |Codec|Level|Total compacted size|Compression|Major compaction time (seconds)| |---|---|---|---|---| |None|-|5,121,804,020|-|-| | | | | | | |lz4 (aircompressor)|-|1,525,277,027|70.2%|16| |lz4 (lz4-java)|-|1,524,932,289|70.2%|13| |lzo (aircompressor)|-|1,578,220,788|69.2%|15| |Snappy (aircompressor)|-|1,595,784,200|68.8%|14| |Snappy (xerial)|-|1,604,659,551|68.7%|17| |ZStandard (aircompressor)|(dfast)|1,074,637,595|79.0%|32| |ZStandard (zstd-jni)|1 (fast min)|1,111,058,386|78.3%|18| |ZStandard (zstd-jni)|2 (fast max)|1,076,837,323|79.0%|20| |ZStandard (zstd-jni)|4 (dfast max)|1,034,994,492|79.8%|33| |ZStandard (zstd-jni)|5 (greedy)|1,021,233,357|80.1%|38| |ZStandard (zstd-jni)|6 (lazy)|1,004,341,613|80.4%|50| |ZStandard (zstd-jni)|12 (lazy2 max)|975,070,595|81.0%|225| |ZStandard (zstd-jni)|15 (btlazy2 max)|909,137,633|82.2%|446| |ZStandard (zstd-jni)|18 (btopt max)|905,353,364|82.3%|1214| |ZStandard (zstd-jni)|22 (btultra max)|903,207,510|82.4%|2406| |LMZA|1 (min)|972,730,691|81.0%|201| |LZMA|3 (default)|955,130,988|81.4%|264| |LZMA|6|911,930,048|82.2%|1260| |LZMA|9 (max)|911,929,521|82.2%|2124| | | | | | | |Deflate (java.util.zip)|1 (min)|1,227,907,255|76.0%|43| |Deflate (java.util.zip)|6 (default)|1,059,481,372|79.3%|89| |Deflate (java.util.zip)|9 (max)|1,013,628,808|80.2%|147| -- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. To unsubscribe, e-mail: [email protected] For queries about this service, please contact Infrastructure at: [email protected]
