statistics: sometimes history hot region also consumes a lot of memory

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#5,713 opened on Nov 17, 2022 1 comment 0 reactions 0 assignees View on GitHub

type/enhancement

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![image](https://user-images.githubusercontent.com/19542290/202381542-32072b13-14e6-41a0-a2b9-a120f20f7e12.png)

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