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https://issues.apache.org/jira/browse/HADOOP-6166?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Tsz Wo (Nicholas), SZE updated HADOOP-6166:
-------------------------------------------
Attachment: c6166_20090722_benchmark_32VM.txt
c6166_20090722_benchmark_64VM.txt
c6166_20090722_benchmark_64VM.txt, c6166_20090722_benchmark_32VM.txt: Tested
the implementations on both 32-bit and 64-bit VMs. Seems that Crc32_4_3 are
faster than current PureJavaCrc32 in both cases.
(Sorry that I still have not tested with TestPureJavaCrc32.PerformanceTest.)
> Improve PureJavaCrc32
> ---------------------
>
> Key: HADOOP-6166
> URL: https://issues.apache.org/jira/browse/HADOOP-6166
> Project: Hadoop Common
> Issue Type: Improvement
> Components: util
> Reporter: Tsz Wo (Nicholas), SZE
> Assignee: Tsz Wo (Nicholas), SZE
> Attachments: c6166_20090722.patch, c6166_20090722_benchmark_32VM.txt,
> c6166_20090722_benchmark_64VM.txt
>
>
> Got some ideas to improve CRC32 calculation.
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