[jira] [Closed] (ARROW-1733) [C++] Utility for allocating fixed-size mutable primitive ArrayData with a single memory allocation

["Wes McKinney (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/ARROW-1733?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Wes McKinney closed ARROW-1733.
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    Resolution: Won't Fix

I agree, let's just trust jemalloc. This is a fairly esoteric optimization and we can investigate when it comes up (which may be multiple years)

> [C++] Utility for allocating fixed-size mutable primitive ArrayData with a single memory allocation
> ---------------------------------------------------------------------------------------------------
>
>                 Key: ARROW-1733
>                 URL: https://issues.apache.org/jira/browse/ARROW-1733
>             Project: Apache Arrow
>          Issue Type: New Feature
>          Components: C++
>            Reporter: Wes McKinney
>            Priority: Major
>
> The validity bitmap and the values for the primitive data would be part of a single allocation, so better heap locality and possibly better performance in aggregate. This same approach is also being worked on for Java



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