support DataLevel0BlocksMemory data struct#577

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Axlgrep wants to merge 2 commits intonmslib:developfrom Axlgrep:optimize_memory_allocation

+520-58

Commits on Jul 27, 2024

support DataLevel0BlocksMemory data struct to solve the realloc huge memory doubling problem
Axlgrep
committed

Commits on Jul 31, 2024

add dataLevel0BlocksMemory test case
Axlgrep
committed