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Posted to issues@arrow.apache.org by "Wes McKinney (Jira)" <ji...@apache.org> on 2019/11/26 01:10:00 UTC

[jira] [Closed] (ARROW-465) [C++] Investigate usage of madvise

     [ https://issues.apache.org/jira/browse/ARROW-465?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Wes McKinney closed ARROW-465.
------------------------------
    Fix Version/s:     (was: 2.0.0)
       Resolution: Later

Closing for now, can be taken up in future performance explorations

> [C++] Investigate usage of madvise 
> -----------------------------------
>
>                 Key: ARROW-465
>                 URL: https://issues.apache.org/jira/browse/ARROW-465
>             Project: Apache Arrow
>          Issue Type: Improvement
>          Components: C++
>            Reporter: Uwe Korn
>            Priority: Major
>
> In some usecases (e.g. Pandas->Arrow conversion) our main constraint is page faulting not yet accessed pages. 
> With {{madvise}} we can indicate our planned actions to the OS and may improve the performance a bit in these cases.



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