scheduler: use history loads in single rocksdb

[lhy1024]

What problem does this PR solve?

Issue Number: Ref #6297

What is changed and how does it work?

Check List

Tests

• Unit test
• Integration test
• Manual test (add detailed scripts or steps below)
  compare 4466afa with 7.2 in bench bot

some cases increase: oltp_delete, update_index, update_non_index, tpcc

some case unchange: hzbank, oltp_point_select, read only, read_write, random points, random range, shenma

Release note

None.

[ti-chi-bot]

[REVIEW NOTIFICATION]

This pull request has been approved by:

• HuSharp
• bufferflies

To complete the pull request process, please ask the reviewers in the list to review by filling /cc @reviewer in the comment.
After your PR has acquired the required number of LGTMs, you can assign this pull request to the committer in the list by filling /assign @committer in the comment to help you merge this pull request.

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

Reviewer can indicate their review by submitting an approval review.
Reviewer can cancel approval by submitting a request changes review.

[ti-chi-bot]

Skipping CI for Draft Pull Request.
If you want CI signal for your change, please convert it to an actual PR.
You can still manually trigger a test run with /test all

[codecov]

Codecov Report

Merging #6807 (84cdb25) into master (ef81248) will increase coverage by 0.00%.
Report is 1 commits behind head on master.
The diff coverage is 0.00%.

❗ Current head 84cdb25 differs from pull request most recent head ce52b32. Consider uploading reports for the commit ce52b32 to get more accurate results

Additional details and impacted files

@@           Coverage Diff           @@
##           master    #6807   +/-   ##
=======================================
  Coverage   74.17%   74.18%           
=======================================
  Files         419      418    -1     
  Lines       44079    43995   -84     
=======================================
- Hits        32697    32638   -59     
+ Misses       8470     8456   -14     
+ Partials     2912     2901   -11     

Flag	Coverage Δ
unittests	74.18% <0.00%> (+<0.01%)	⬆️

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

[lhy1024]

/ok-to-test

[lhy1024]

/run-build-arm64 comment=true

[lhy1024]

/run-build-arm64 comment=true

[purelind]

/run-build-arm64 comment=true

[sre-bot]

download pd binary(linux arm64) at http://fileserver.pingcap.net/download/builds/pingcap/test/pd/4466afa71faa62a3bdc77002f9ade084a18d07a3/centos7/pd-linux-arm64.tar.gz

[lhy1024]

compare 4466afa with 7.2 in bench bot

1. some cases increase: oltp_delete, update_index, update_non_index, tpcc

2. some case unchange: hzbank, oltp_point_select, read only, read_write, randoim points, randoim range, shenma

3. some case decrease: oltp_insert, oltp_write_only, oltp_read_write
   
   

[lhy1024]

For oltp_insert

If test with warm, this pr has lower qps than 7.2

If test without warm, this pr has higher qps than 7.2

[lhy1024]

After discussion with @bufferflies and @Yui-Song, we will close warm in oltp_insert

[lhy1024]

/merge

[ti-chi-bot]

@lhy1024: It seems you want to merge this PR, I will help you trigger all the tests:

/run-all-tests

You only need to trigger /merge once, and if the CI test fails, you just re-trigger the test that failed and the bot will merge the PR for you after the CI passes.

If you have any questions about the PR merge process, please refer to pr process.

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]

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

Commit hash: 84cdb25

[ti-chi-bot]

@lhy1024: Your PR was out of date, I have automatically updated it for you.

If the CI test fails, you just re-trigger the test that failed and the bot will merge the PR for you after the CI passes.

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.