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[PR #5645] Reserve textClusterColumns vector for performance #26400

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opened 2026-01-31 09:15:50 +00:00 by claunia · 0 comments
claunia commented 2026-01-31 09:15:50 +00:00
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Original Pull Request: https://github.com/microsoft/terminal/pull/5645

State: closed
Merged: Yes

Summary of the Pull Request

In tonight's episode of "Can we be even faster?", we will... you know what, just take a look at the code.

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PR Checklist

  • Closes #xxx
  • CLA signed. If not, go over here and sign the CLA
  • Tests added/passed
  • Requires documentation to be updated
  • I've discussed this with core contributors already. If not checked, I'm ready to accept this work might be rejected in favor of a different grand plan. Issue number where discussion took place: #xxx

Detailed Description of the Pull Request / Additional comments

It is actually a quite common technique seen inside the codebase to first reserve the spaces before pushing something into vectors. I don't know why it is not used here.

Before:
before

After:

after

Validation Steps Performed

**Original Pull Request:** https://github.com/microsoft/terminal/pull/5645 **State:** closed **Merged:** Yes --- <!-- Enter a brief description/summary of your PR here. What does it fix/what does it change/how was it tested (even manually, if necessary)? --> ## Summary of the Pull Request In tonight's episode of "Can we be even faster?", we will... you know what, just take a look at the code. <!-- Other than the issue solved, is this relevant to any other issues/existing PRs? --> ## References <!-- Please review the items on the PR checklist before submitting--> ## PR Checklist * [ ] Closes #xxx * [ ] CLA signed. If not, go over [here](https://cla.opensource.microsoft.com/microsoft/Terminal) and sign the CLA * [ ] Tests added/passed * [ ] Requires documentation to be updated * [ ] I've discussed this with core contributors already. If not checked, I'm ready to accept this work might be rejected in favor of a different grand plan. Issue number where discussion took place: #xxx <!-- Provide a more detailed description of the PR, other things fixed or any additional comments/features here --> ## Detailed Description of the Pull Request / Additional comments It is actually a quite common technique seen inside the codebase to first reserve the spaces before pushing something into vectors. I don't know why it is not used here. Before: ![before](https://user-images.githubusercontent.com/4710575/80594408-84051400-8a55-11ea-9c04-c0a808061976.png) After: ![after](https://user-images.githubusercontent.com/4710575/80594402-80718d00-8a55-11ea-8639-6c038b4bfcf8.png) <!-- Describe how you validated the behavior. Add automated tests wherever possible, but list manual validation steps taken as well --> ## Validation Steps Performed
claunia added the pull-request label 2026-01-31 09:15:50 +00:00
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Reference: starred/terminal#26400
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