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https://issues.apache.org/jira/browse/ARROW-14341?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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David Li resolved ARROW-14341.
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Fix Version/s: 6.0.0
Resolution: Fixed
Issue resolved by pull request 11458
[https://github.com/apache/arrow/pull/11458]
> [C++] Refine decimal benchmark
> ------------------------------
>
> Key: ARROW-14341
> URL: https://issues.apache.org/jira/browse/ARROW-14341
> Project: Apache Arrow
> Issue Type: Improvement
> Components: C++
> Reporter: Yibo Cai
> Assignee: Yibo Cai
> Priority: Major
> Labels: pull-request-available
> Fix For: 6.0.0
>
> Time Spent: 1h 10m
> Remaining Estimate: 0h
>
> Decimal benchmark mixes {{+-*/}} operations in one test loop[1]. Divide
> always dominates the result. It's ~6x slower than multiplication, let alone
> addition.
> It's better to test division, multiplication, addition/subtraction separately
> to get more reasonable results.
> [1]
> https://github.com/apache/arrow/blob/master/cpp/src/arrow/util/decimal_benchmark.cc#L141-L145
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