Comments (3)
saethlin
commented on June 27, 2024
1
This is a common observation about heap allocators. It's rather vexing, but not releasing memory to the OS is an important optimization.
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zhangxize
commented on June 27, 2024
Before the 6th attempt, the memory increased slightly and then stopped at 277M
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thynson
commented on June 27, 2024
It is working as intended and depends on the implementation of the memory allocator.
When a Vec is dropped, the corresponding memory is returned to the allocator, while the allocator may keep it for next allocation, instead of returning it to the OS directly.
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