freemandealer opened a new pull request, #47472:
URL: https://github.com/apache/doris/pull/47472
when update bvar metrics, we held block lock in the critical context of
cache lock, make the later lock held too long and affect other cache logic. we
use unsafe method to update the bvar to boost performance.
some key metrics of lock and other meaningful metrics are also added for
better monitoring cache time costs.
### What problem does this PR solve?
Issue Number: close #xxx
Related PR: #xxx
Problem Summary:
### Release note
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- Behavior changed:
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- [ ] Yes. <!-- Explain the behavior change -->
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