[
https://issues.apache.org/jira/browse/HADOOP-7446?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Suresh Srinivas updated HADOOP-7446:
------------------------------------
Component/s: performance
> Implement CRC32C native code using SSE4.2 instructions
> ------------------------------------------------------
>
> Key: HADOOP-7446
> URL: https://issues.apache.org/jira/browse/HADOOP-7446
> Project: Hadoop Common
> Issue Type: Improvement
> Components: native, performance
> Affects Versions: 0.23.0
> Reporter: Todd Lipcon
> Assignee: Todd Lipcon
> Fix For: 0.23.0
>
> Attachments: crc-pipeline-fix.txt, hadoop-7446.txt, hadoop-7446.txt,
> hadoop-7446.txt, pipelined-crc.patch.txt, pipelined_on_todds_patch.txt,
> pipelined_with_todds_patch.txt
>
>
> Once HADOOP-7445 is implemented, we can get further performance improvements
> by implementing CRC32C using the hardware support available in SSE4.2. This
> support should be dynamically enabled based on CPU feature flags, and of
> course should be ifdeffed properly so that it doesn't break the build on
> architectures/platforms where it's not available.
--
This message is automatically generated by JIRA.
If you think it was sent incorrectly, please contact your JIRA administrators:
https://issues.apache.org/jira/secure/ContactAdministrators!default.jspa
For more information on JIRA, see: http://www.atlassian.com/software/jira
