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Posted to issues@ozone.apache.org by "Stephen O'Donnell (Jira)" <ji...@apache.org> on 2021/02/05 12:09:00 UTC

[jira] [Commented] (HDDS-4138) Improve crc efficiency

    [ https://issues.apache.org/jira/browse/HDDS-4138?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17279655#comment-17279655 ] 

Stephen O'Donnell commented on HDDS-4138:
-----------------------------------------

[~yjxxtd] Are you happy for me to take ownership of this Jira? I have performed some benchmarks and I believe I know how we should improve the CRC performance.

> Improve crc efficiency
> ----------------------
>
>                 Key: HDDS-4138
>                 URL: https://issues.apache.org/jira/browse/HDDS-4138
>             Project: Apache Ozone
>          Issue Type: Task
>            Reporter: runzhiwang
>            Assignee: runzhiwang
>            Priority: Major
>         Attachments: screenshot-1.png
>
>
> HADOOP has implemented several method to calculate crc: https://issues.apache.org/jira/browse/HADOOP-15033
> We should choose the method with high efficiency.
> This flame graph is from [~elek]
>  !screenshot-1.png! 



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