microsoft / microsoft/STL

<format>: Improve performance

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format performance
Dominant language
C++
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Description

Reported by @jovibor - here are examples where <format> is 20% to 70% slower than libfmt:

https://github.com/microsoft/STL/issues/1800#issuecomment-812815620
https://github.com/microsoft/STL/issues/1800#issuecomment-812838596

Contributor guide

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First steps

  1. Read the whole issue, then the project's contributing guide.
  2. Comment on the issue to say you are picking it up — it saves two people doing the same work.
  3. Fork the repository and make your change on a branch.
  4. Open a pull request that references the issue number.

Research direction

Start by reviewing the performance examples linked from microsoft/STL#1800 and identify which operations are 20% to 70% slower than libfmt. Then locate the corresponding formatting implementation and existing performance tests or benchmarks in the repository. Done means the affected cases perform substantially closer to libfmt without regressions.

Written by the indexing model from the issue text.

Assessment

Tech stack
cpp
Domain
performance
Issue type
Bug
Difficulty
4/5
Estimated time
3-5 days
Activity status
Stale
Clarity
Needs clarification
Newbie friendliness
25/100

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