[jira] [Commented] (ARROW-10797) [C++] Investigate faster random generation for tests and benchmarks

["Antoine Pitrou (Jira)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/ARROW-10797?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17246443#comment-17246443 ] 

Antoine Pitrou commented on ARROW-10797:
----------------------------------------

This seems to make the setup phase in {{vector_sort_benchmark}} about 15% faster. Not sure that is sufficiently worthy. cc [~bkietz] for opinion.

> [C++] Investigate faster random generation for tests and benchmarks
> -------------------------------------------------------------------
>
>                 Key: ARROW-10797
>                 URL: https://issues.apache.org/jira/browse/ARROW-10797
>             Project: Apache Arrow
>          Issue Type: Wish
>          Components: C++
>            Reporter: Antoine Pitrou
>            Priority: Trivial
>
> Test and benchmark harness sometimes has a non-trivial cost when generating large random data (e.g. {{vector_sort_benchmark.cc}}). We may try a non-standard PRNG such as [PCG|https://www.pcg-random.org/using-pcg-cpp.html].



--
This message was sent by Atlassian Jira
(v8.3.4#803005)