pingcap / pingcap/tidb

stats: extensive map cloning might be a problem for small maps, could use a pool to optimize

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#63,239 0 comments 0 reactions 0 assignees View on GitHub
type/enhancement
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Description

## Enhancement

As title, need to test whether using a pool can getting better or worse. Creating / deleting small maps due to stats table clone might be heavy, using a pool might improve, but need evidence

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