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Reduce segment bitmap size for the DMFile is partly ingested into stable layer #9533

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JaySon-Huang opened this issue Oct 15, 2024 · 0 comments
Open

Reduce segment bitmap size for the DMFile is partly ingested into stable layer #9533

JaySon-Huang opened this issue Oct 15, 2024 · 0 comments
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component/storage type/enhancement The issue or PR belongs to an enhancement.

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JaySon-Huang commented Oct 15, 2024 •
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Enhancement

As the test result (#9531) show, if a segment range is [0, 100) with a dmfile range is [0, 200). The segment mvcc bitmap contains the rows that is not valid for the segment range. This causes more memory and CPU.

https://github.com/pingcap/tiflash/pull/9531/files#diff-c8031f2e65afb6e1e7022210634109c6f4e876824f9e9b82da5a6b5cecc27ea9R522-R558
@JaySon-Huang JaySon-Huang added type/enhancement The issue or PR belongs to an enhancement. component/storage labels Oct 15, 2024
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