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

The full list of commands accepted by this bot can be found here.

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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:

• 2024-01-19 02:53:40.684608988 +0000 UTC m=+497262.248906694: ☑️ agreed by JaySon-Huang.
• 2024-01-19 02:56:44.782282023 +0000 UTC m=+497446.346579713: ☑️ agreed by JinheLin.

[JinheLin]

/run-all-tests

[JinheLin]

[2024-01-19T03:11:27.355Z] + docker-compose -f cluster.yaml -f tiflash-dt-async-grpc.yaml down

[2024-01-19T03:11:27.915Z] Stopping tidb-ci_tiflash0_1 ... 

[2024-01-19T03:11:27.915Z] Stopping tidb-ci_tidb0_1    ... 

[2024-01-19T03:11:27.915Z] Stopping tidb-ci_tikv0_1    ... 

[2024-01-19T03:11:27.915Z] Stopping tidb-ci_pd0_1      ... 

[2024-01-19T03:12:39.901Z] 
Stopping tidb-ci_tidb0_1    ... done

Stopping tidb-ci_tikv0_1    ... error

Stopping tidb-ci_pd0_1      ... error


[2024-01-19T03:12:39.901Z] ERROR: for tidb-ci_tiflash0_1  HTTPConnectionPool(host='localhost', port=2375): Read timed out. (read timeout=70)

[2024-01-19T03:12:39.901Z] An HTTP request took too long to complete. Retry with --verbose to obtain debug information.

[2024-01-19T03:12:39.901Z] If you encounter this issue regularly because of slow network conditions, consider setting COMPOSE_HTTP_TIMEOUT to a higher value (current value: 60).

[JinheLin]

/run-integration-test