resource_control: update static calibrate cpu params

[HuSharp]

What problem does this PR solve?

Issue Number: close #44012

Problem Summary:

What is changed and how it works?

• cpu formula is ms, the previous calculation forgot to multiply by 1000

Check List

Tests

• Unit test

Release note

Please refer to Release Notes Language Style Guide to write a quality release note.

None

[ti-chi-bot]

[REVIEW NOTIFICATION]

This pull request has been approved by:

• glorv
• nolouch

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[HuSharp]

@nolouch @glorv @CabinfeverB PTAL, thx!

[ti-chi-bot]

@CabinfeverB: Thanks for your review. The bot only counts approvals from reviewers and higher roles in list, but you're still welcome to leave your comments.

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[HuSharp]

/review default

[ti-chi-bot]

@HuSharp:

Pull Request Review

Title

resource_control: update static calibrate cpu params

Description

The pull request aims to fix the issue referenced in #43212 by updating the static calibrate CPU parameters. The main change is in the conversion from seconds to milliseconds for the CPU value.

Changes

The changes include:

1. Renaming tidbCPU to tidbToKVCPURatio to reflect the actual purpose of the variable better.
2. Updated the CPU calculation formula to multiply the base CPU value by 1000 to convert it to milliseconds.
3. Fixed a minor typo in the comment.
4. Minor adjustments in test cases to match the updated CPU calculation.

Potential problems

• The Pull Request itself does not have any major issues.
• The test cases have been updated to reflect the changes in the calculation, but it would be a good idea to verify if any other test scenarios need to be added for further validation.

Suggestions

No immediate suggestions, as the pull request appears to address the issue described in #43212.

Markdown Summary

- **Title**: resource_control: update static calibrate cpu params
- **Problem**: Inaccurate CPU time unit conversion in resource control static calibration
- **Changes**:
    1. Renamed `tidbCPU` to `tidbToKVCPURatio`
    2. Updated CPU calculation formula to convert seconds to milliseconds
    3. Fixed some minor typographical issues and updated test cases
- **Potential Problems**: None
- **Suggestions**: Verify if additional test cases are necessary for validation.

In response to this:

/review default

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[nolouch]

lgtm

[nolouch]

lgtm

[hawkingrei]

/merge

[ti-chi-bot]

This pull request has been accepted and is ready to merge.

Commit hash: d6d71eb

[ti-chi-bot]

In response to a cherrypick label: new pull request created to branch release-7.1: #44013.