gemini-cli - 💡(How to fix) Fix Performance bottleneck in ANSI output rendering [1 comments, 2 participants]

Official PRs (…)
ON THIS PAGE

Recommended Tools

×6

Utilities matched from this issue’s tags and category — try them while you read without losing context.

GitHub issue graph ai analysis

Paste a GitHub issue URL. We fetch that issue, discover linked issues from bodies/comments/timeline, collect linked pull requests, and produce a structured English report.

The report is written in English Markdown for sharing and archival.

Helpful · Quick feedback

Loading…
GitHub stats
google-gemini/gemini-cli#26801Fetched 2026-05-11 03:28:01
View on GitHub
Comments
1
Participants
2
Timeline
9
Reactions
0
Timeline (top)
labeled ×5added_to_project_v2 ×1commented ×1issue_type_added ×1
RAW_BUFFERClick to expand / collapse

What happened?

AnsiOutput.tsx renders every ANSI token as a separate React component. For outputs with heavy formatting or many lines, this creates thousands of Ink/React nodes, leading to severe performance degradation.

What did you expect to happen?

ANSI tokens should be batched or rendered as flat strings where possible, or use a more efficient terminal rendering primitive.

Client Information

<details> <summary>Client Information</summary>

OS: linux Date: Sunday, May 10, 2026 Gemini CLI: 0.42.0-nightly

</details>

Login information

Automated audit with Gemini CLI.

Anything else we need to know?

File: packages/cli/src/ui/components/AnsiOutput.tsx. Noticeable lag when displaying complex tool outputs or colored logs.

Severity: Medium Area: area/core

Vote matrix · Quick signals

Works
Did the solution work? Tap to confirm.
Easy Fix
Was it a quick fix?
Time Saver
Did it save you time?
Blocking
Was it severely blocking?
Common Issue
Are others likely hitting this too?
Flaky / Intermittent
Is it intermittent?
Verified / Reproducible
Can you reproduce it reliably?
Loading…

Still need to ship something?

×6

Another batch ranked right after the header list — different links, same matching logic.

Back to top recommendations

TRENDING

gemini-cli - 💡(How to fix) Fix Performance bottleneck in ANSI output rendering [1 comments, 2 participants]