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https://issues.apache.org/jira/browse/ARROW-4670?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16776324#comment-16776324
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Neville Dipale commented on ARROW-4670:
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Hi [~andygrove] one cause might be the null checks. I found a faster way of
computing sum, but was just after the original PR was merged. I'll have a look
at your benchmarks to see if that's the cause of slow sum performance
> [Rust] compute::sum performance issue
> -------------------------------------
>
> Key: ARROW-4670
> URL: https://issues.apache.org/jira/browse/ARROW-4670
> Project: Apache Arrow
> Issue Type: Improvement
> Components: Rust
> Affects Versions: 0.12.0
> Reporter: Andy Grove
> Assignee: Andy Grove
> Priority: Major
> Fix For: 0.13.0
>
>
> I'm running some microbenchmarks over at
> [https://github.com/andygrove/row-vs-col-rs] to compare performance of arrow
> to just using Vec<> and I'm finding that Arrow is 18x slower in these
> benchmarks.
> I am quite surprised at this performance difference so am creating this issue
> and will attempt to optimize the code.
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