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https://issues.apache.org/jira/browse/ARROW-17836?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17610098#comment-17610098
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Weston Pace commented on ARROW-17836:
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I suspect this was a typo and meant to be 512 bytes. The current spilling PR
is using direct I/O and so I believe the motivation is the logical block size
of the disk.
> [C++] Allow specifying of alignment in MemoryPool's allocations
> ----------------------------------------------------------------
>
> Key: ARROW-17836
> URL: https://issues.apache.org/jira/browse/ARROW-17836
> Project: Apache Arrow
> Issue Type: Improvement
> Components: C++
> Reporter: Sasha Krassovsky
> Assignee: Sasha Krassovsky
> Priority: Major
> Labels: pull-request-available
> Time Spent: 40m
> Remaining Estimate: 0h
>
> For spilling, I need to create buffers that are 512-bit aligned. The task is
> to augment MemoryPool to allow for specifying alignment explicitly when
> allocating (but keep the default the same).
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