[jira] [Resolved] (ARROW-14269) [C++] Consolidate utf8 benchmark

["Yibo Cai (Jira)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/ARROW-14269?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Yibo Cai resolved ARROW-14269.
------------------------------
    Fix Version/s: 6.0.0
       Resolution: Fixed

Issue resolved by pull request 11376
[https://github.com/apache/arrow/pull/11376]

> [C++] Consolidate utf8 benchmark
> --------------------------------
>
>                 Key: ARROW-14269
>                 URL: https://issues.apache.org/jira/browse/ARROW-14269
>             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: 2h 20m
>  Remaining Estimate: 0h
>
> I find some trivial (and obviously irrelevant) changes to UTF8 validation code may cause big variances to benchmark result.
> UTF8 validation functions are inlined and called directly in benchmark. The compiler may try to optimize them together with the benchmark loop.
> Un-inline the benchmark-ed functions makes the result predictable and explainable.



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