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Posted to jira@arrow.apache.org by "Wes McKinney (Jira)" <ji...@apache.org> on 2021/02/19 23:29:00 UTC

[jira] [Updated] (ARROW-3406) [C++] Create a caching memory pool implementation

     [ https://issues.apache.org/jira/browse/ARROW-3406?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Wes McKinney updated ARROW-3406:
--------------------------------
    Labels: query-engine  (was: )

> [C++] Create a caching memory pool implementation
> -------------------------------------------------
>
>                 Key: ARROW-3406
>                 URL: https://issues.apache.org/jira/browse/ARROW-3406
>             Project: Apache Arrow
>          Issue Type: Improvement
>          Components: C++
>    Affects Versions: 0.11.0
>            Reporter: Antoine Pitrou
>            Priority: Minor
>              Labels: query-engine
>
> A caching memory pool implementation would be able to recycle freed memory blocks instead of returning them to the system immediately. Two different policies may be chosen:
> * either an unbounded cache
> * or a size-limited cache, perhaps with some kind of LRU mechanism
> Such a feature might help e.g. for CSV parsing, when reading and parsing data into temporary memory buffers.



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