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Posted to issues@arrow.apache.org by "Wes McKinney (Jira)" <ji...@apache.org> on 2019/12/15 22:56:00 UTC

[jira] [Commented] (ARROW-6994) [C++] Research jemalloc memory page reclamation configuration on macOS when background_thread option is unavailable

    [ https://issues.apache.org/jira/browse/ARROW-6994?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16996889#comment-16996889 ] 

Wes McKinney commented on ARROW-6994:
-------------------------------------

We might want to set the reclamation threshold to 0 (aggressive) on macOS to prevent the memory use problems we addressed in ARROW-6910

> [C++] Research jemalloc memory page reclamation configuration on macOS when background_thread option is unavailable
> -------------------------------------------------------------------------------------------------------------------
>
>                 Key: ARROW-6994
>                 URL: https://issues.apache.org/jira/browse/ARROW-6994
>             Project: Apache Arrow
>          Issue Type: Improvement
>          Components: C++
>            Reporter: Wes McKinney
>            Priority: Major
>             Fix For: 1.0.0
>
>
> In ARROW-6977, this was disabled on macOS, but this will potentially have negative performance and memory implications that were intended to have been fixed in ARROW-6910



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