metric: add read scan duration panel (#16205) #16209
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This is an automated cherry-pick of #16205
What is changed and how it works?
Issue Number: ref #15066
What's Changed:
After #16180, the in-memory pessimstic locks would be scanned in the resolve lock phase.
Monitoring it is helpful for analyzing performance impact and deciding whether further optimization of scan lock is necessary, as the in-memory pessimistic lock is a critical component that impacts performance.
Related changes
Check List
Tests
Side effects
Release note