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https://issues.apache.org/jira/browse/ARROW-12584?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Weston Pace reassigned ARROW-12584:
-----------------------------------
Assignee: Weston Pace
> [C++][Python] Expose method for benchmarking tools to release unused memory
> from the allocators
> -----------------------------------------------------------------------------------------------
>
> Key: ARROW-12584
> URL: https://issues.apache.org/jira/browse/ARROW-12584
> Project: Apache Arrow
> Issue Type: Improvement
> Components: C++, Python
> Reporter: Weston Pace
> Assignee: Weston Pace
> Priority: Major
>
> A team working on Arrow benchmarks encountered a problem where the mimalloc
> allocator was holding onto considerably more RAM than needed (at least 6GB
> and potentially more).
> Mimalloc offers the `mi_collect` non-standard API which forces mimalloc to
> release unused pages to the OS. We could expose this to be called by
> benchmarking tools to get consistent results and reduce the amount of RAM
> needed.
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