statistics: stop loading too many stats when to init stats

[hawkingrei]

What problem does this PR solve?

Issue Number: close #54000

Problem Summary:

What changed and how does it work?

Check List

Tests

• Unit test
• Integration test
• Manual test (add detailed scripts or steps below)

with 1 millions tables, tidb disable lite-init-stats.

before

after

sync load can find needed-load stats and evict stats when too many stats is in the cache.

• 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

[hawkingrei]

/retest

[codecov]

Codecov Report

Attention: Patch coverage is 51.51515% with 32 lines in your changes missing coverage. Please review.

Project coverage is 56.5508%. Comparing base (29fc940) to head (01de37c).
Report is 15 commits behind head on master.

Additional details and impacted files

@@                Coverage Diff                @@
##             master     #53999         +/-   ##
=================================================
- Coverage   72.4718%   56.5508%   -15.9210%     
=================================================
  Files          1508       1638        +130     
  Lines        432045     611833     +179788     
=================================================
+ Hits         313111     345997      +32886     
- Misses        99516     242638     +143122     
- Partials      19418      23198       +3780     

Flag	Coverage Δ
integration	37.6899% <0.0000%> (?)
unit	72.0788% <51.5151%> (+0.6162%)	⬆️

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

Components	Coverage Δ
dumpling	52.9656% <ø> (+0.0188%)	⬆️
parser	∅ <ø> (∅)
br	51.1583% <ø> (+8.9091%)	⬆️

[hawkingrei]

/retest

[hawkingrei]

/retest

[hawkingrei]

/retest

[ti-chi-bot]

[LGTM Timeline notifier]

Timeline:

• 2024-06-17 12:50:05.721873903 +0000 UTC m=+32732.207362727: ☑️ agreed by winoros.
• 2024-06-18 03:19:40.035169814 +0000 UTC m=+84906.520658647: ☑️ agreed by AilinKid.

[ti-chi-bot]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: AilinKid, winoros

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• pkg/statistics/OWNERS [AilinKid,winoros]

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[hawkingrei]

/retest

[hawkingrei]

/cherrypick release-7.5
/cherrypick release-8.1

[ti-chi-bot]

@hawkingrei: new pull request created to branch release-7.5: #54104.

In response to this:

/cherrypick release-7.5
/cherrypick release-8.1

Instructions for interacting with me using PR comments are available here. If you have questions or suggestions related to my behavior, please file an issue against the ti-community-infra/tichi repository.

[ti-chi-bot]

@hawkingrei: new pull request created to branch release-8.1: #54105.

In response to this:

/cherrypick release-7.5
/cherrypick release-8.1

Instructions for interacting with me using PR comments are available here. If you have questions or suggestions related to my behavior, please file an issue against the ti-community-infra/tichi repository.