ddl: dynamically adjusting the max write speed of reorganization job (#57611)

[ti-chi-bot]

This is an automated cherry-pick of #57611

What problem does this PR solve?

Issue Number: ref #57526 #57229

Problem Summary: See #57229

What changed and how does it work?

Supply later

Check List

Tests

• Unit test
• Integration test
• Manual test (add detailed scripts or steps below)
• No need to test

  • I checked and no code files have been changed.

Side effects

• Performance regression: Consumes more CPU
• Performance regression: Consumes more Memory
• Breaking backward compatibility

Documentation

• Affects user behaviors
• Contains syntax changes
• Contains variable changes
• Contains experimental features
• Changes MySQL compatibility

Release note

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

None

[codecov]

Codecov Report

Attention: Patch coverage is 82.00000% with 27 lines in your changes missing coverage. Please review.

Please upload report for BASE (release-8.5@ed39273). Learn more about missing BASE report.

Additional details and impacted files

@@               Coverage Diff                @@
##             release-8.5     #57690   +/-   ##
================================================
  Coverage               ?   56.9421%           
================================================
  Files                  ?       1770           
  Lines                  ?     626719           
  Branches               ?          0           
================================================
  Hits                   ?     356867           
  Misses                 ?     245733           
  Partials               ?      24119           

Flag	Coverage Δ
integration	36.9228% <50.6666%> (?)
unit	72.6116% <77.3333%> (?)

Flags with carried forward coverage won't be shown. Click here to find out more.

Components	Coverage Δ
dumpling	52.9478% <0.0000%> (?)
parser	∅ <0.0000%> (?)
br	52.3194% <0.0000%> (?)

[ti-chi-bot]

[LGTM Timeline notifier]

Timeline:

• 2024-11-26 03:40:55.875869986 +0000 UTC m=+521443.495524501: ☑️ agreed by D3Hunter.
• 2024-11-26 04:23:41.088362287 +0000 UTC m=+524008.708016802: ☑️ agreed by tangenta.

[ti-chi-bot]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: D3Hunter, tangenta, winoros

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Needs approval from an approver in each of these files:

• OWNERS [D3Hunter,tangenta,winoros]
• pkg/ddl/OWNERS [D3Hunter,tangenta]
• pkg/lightning/OWNERS [D3Hunter]
• pkg/meta/OWNERS [D3Hunter,tangenta]
• pkg/planner/OWNERS [winoros]

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[fzzf678]

/retest