Optimize grapheme renderer performance #352

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brandonkachen wants to merge 1 commit into brandon/tui-altbuffer from codex/improve-tui-app-performance-and-rebase

+149 −68

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brandonkachen commented Oct 27, 2025

Summary

replace the lodash-based grapheme diffing with lightweight helpers and direct string command generation
cache cursor state in the renderer to avoid redundant cursor writes and skip unnecessary stdout updates
clean up timer management with clearTimeout/clearInterval during refresh and shutdown

Testing

pnpm --filter @codebuff/display typecheck (fails: missing grapheme-splitter module because node_modules is absent in the workspace)

https://chatgpt.com/codex/tasks/task_e_68fc6b85e500832ca47e1231856746b2


          Optimize grapheme renderer performance

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brandonkachen added the codex label

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ChatGPT Codex Connector

codebuff-team closed this

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Reviewers

jahooma Awaiting requested review from jahooma jahooma will be requested when the pull request is marked ready for review jahooma is a code owner

charleslien Awaiting requested review from charleslien charleslien will be requested when the pull request is marked ready for review charleslien is a code owner

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