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Posted to jira@arrow.apache.org by "ASF GitHub Bot (Jira)" <ji...@apache.org> on 2020/09/01 09:33:00 UTC

[jira] [Updated] (ARROW-9873) [C++][Compute] Improve mode kernel for intergers within limited value range

     [ https://issues.apache.org/jira/browse/ARROW-9873?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

ASF GitHub Bot updated ARROW-9873:
----------------------------------
    Labels: pull-request-available  (was: )

> [C++][Compute] Improve mode kernel for intergers within limited value range
> ---------------------------------------------------------------------------
>
>                 Key: ARROW-9873
>                 URL: https://issues.apache.org/jira/browse/ARROW-9873
>             Project: Apache Arrow
>          Issue Type: Improvement
>          Components: C++
>            Reporter: Yibo Cai
>            Assignee: Yibo Cai
>            Priority: Major
>              Labels: pull-request-available
>         Attachments: mode-range-skylake.png
>
>          Time Spent: 10m
>  Remaining Estimate: 0h
>
> It's possible to improve mode kernel performance for integers within limited value range by using a value indexed array instead of general hash table.
>  Similar trick is used in sorting kernel ARROW-1571.



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