Storages: Refine metrics of read threads and data sharing (#8653)

[ti-chi-bot]

This is an automated cherry-pick of #8653

What problem does this PR solve?

Issue Number: ref #8652

What is changed and how it works?

• Add CPU usage metrics of SegmentReader.
  

• Refine metrics of read thread and data sharing.
  
  
  

Check List

Tests

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

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

None

[ti-chi-bot]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: JaySon-Huang, JinheLin

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Needs approval from an approver in each of these files:

• OWNERS [JaySon-Huang,JinheLin]

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[ti-chi-bot]

[LGTM Timeline notifier]

Timeline:

• 2024-01-08 03:13:45.430300067 +0000 UTC m=+240215.014553754: ☑️ agreed by JaySon-Huang.
• 2024-01-08 09:36:53.294767311 +0000 UTC m=+263202.879021172: ☑️ agreed by JinheLin.

[JinheLin]

/run-all-tests

[ti-chi-bot]

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At the same time I will also trigger all tests for you:

/run-all-tests

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