luhuichun created HDFS-12046:
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Summary: Hadoop CRC implementation using Intel ISAL-CRC library
Key: HDFS-12046
URL: https://issues.apache.org/jira/browse/HDFS-12046
Project: Hadoop HDFS
Issue Type: Improvement
Reporter: luhuichun
Assignee: luhuichun
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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