Blog - Title

June, 2011

  • BCL Team Blog

    Memory Mapped File Quirks [Greg]

    • 2 Comments

    Memory mapped files are a powerful technique for random file access and inter-process communication, but like all powerful techniques they come with some quirks. One subtle nuance is that the size of a memory mapped file is always expanded up to the next virtual memory page boundary. This means that developers must track the difference between the useful memory contents containing data, and junk bytes that fill the space up to the next virtual memory page boundary.

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