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Posted to hdfs-issues@hadoop.apache.org by "SammiChen (JIRA)" <ji...@apache.org> on 2017/10/24 07:51:00 UTC
[jira] [Assigned] (HDFS-12046) Hadoop CRC implementation using
Intel ISA-L library
[ https://issues.apache.org/jira/browse/HDFS-12046?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
SammiChen reassigned HDFS-12046:
--------------------------------
Assignee: SammiChen (was: luhuichun)
> Hadoop CRC implementation using Intel ISA-L library
> ---------------------------------------------------
>
> Key: HDFS-12046
> URL: https://issues.apache.org/jira/browse/HDFS-12046
> Project: Hadoop HDFS
> Issue Type: Improvement
> Reporter: luhuichun
> Assignee: SammiChen
> Attachments: HDFS-12046-001.patch, ISA-L CRC Performance Report using intel ISA-L.pdf
>
>
> Intel ISA-L open source library provides set of highly optimized functions for RAID, erasure code, CRC, cryptographic hash, encryption, and compression. Ref. https://github.com/01org/isa-l. HDFS-EC has already integrated ISA-L and added the necessary building options support for Hadoop. For Hadoop CRC, we recently explored more, developing a Hadoop CRC using Intel ISA-L, performing a test on Broadwell and Skylake servers, comparing the performance against Hadoop native CRC. On Broadwell/Skylake, ISA-L CRC has about 8%~ performance gain over Hadoop native CRC. We suggest adding a new Hadoop native CRC using the ISA-L library, the extra advantage is it’s already optimized when we upgrade to new servers and Hadoop developers don’t have to maintain their own bunch of ASM codes.
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