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Choosing the Right Line‑Number Display in Emacs: display‑line‑numbers vs linum‑mode vs nlinum‑mode
When working with large files or older Emacs builds, selecting a line‑number strategy can dramatically affect performance. This guide compares the built‑in display‑line‑numbers, the legacy linum‑mode, and the lightweight nlinum‑mode, then shows a practical init configuration and validation steps.
emacs