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Everything about Memory-mapped file

Virtual memory region with bytes mapped to a file or file-like resource

A memory-mapped file is a segment of virtual memory that has been assigned a direct byte-for-byte correspondence with some portion of a file or file-like resource. This resource is typically a file that is physically present on disk, but can also be a device, shared memory object, or other resource that an operating system can reference through a file descriptor. Once present, this correlation between the file and the memory space permits applications to treat the mapped portion as if it were primary memory. Wikipedia →

🧭 Start here: a 6-step reading path

  1. Read the overview: Memory-mapped fileA 5-minute orientation
  2. Pick up a classic book: Modern Operating SystemsThe most-reprinted book on the subject
  3. Read the landmark paper: Forensic memory analysis: Files mapped in memoryCited 36 times
  4. Go sideways: MmapA closely related topic
  5. Go sideways: Shared memoryA closely related topic

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🏆 Landmark papers (most cited)

📚 Books worth reading

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