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by mjevans
1168 days ago
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'trim' for RAM is a virtual to physical page table hack. Memory that isn't backed by a page is just a zero, it doesn't need to be initialized. Offhand it's supposed to be before it's handed to a process, but I don't know if there are E.G. mechanisms to use some spare cycles to proactively zero non-allocated memory that's a candidate for being attached to VM space. |
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