GitHub user surister closed the discussion with a comment: Is there any advantage to preallocate memory with Builder::with_capacity?
Actually, the number of values I was pushing to the array builders were always the `allocated` +1 due to another issue, I guess that triggers new allocation. With the right allocation number I get better numbers by using `with_capacity` as expected. GitHub link: https://github.com/apache/arrow-rs/discussions/7927#discussioncomment-13866693 ---- This is an automatically sent email for github@arrow.apache.org. To unsubscribe, please send an email to: github-unsubscr...@arrow.apache.org