The ideal PR is 50 lines long

The author of this Graphite piece argues that the ideal pull request is about 50 lines long, based on data from private and public PRs and repos synced with Graphite. The article says 50-line changes are reviewed and merged about 40% faster than 250-line changes and are 15% less likely to be reverted, while a median PR of 50 lines ships roughly 40% more total code than a teammate's 200+ line PRs. It also reports that PRs under 25 lines show a higher revert rate and lower total code shipped, and that the highest-volume coders have median change sizes of 40 to 80 lines.