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memory map in window OS?

johnson
2013-08-13
2013-10-23
  • johnson
    johnson
    2013-08-13

    Hi

    I m trying to map large data using stxxl in my app. The app is on windows.
    I understand mmap is not available. I know that the data access thru memory map will be faster than any others means. But in windows, how far the use of syscall/boostfd/wincall will benefits?
    Are they do paging anyhow?

    Thanks in advance.

     
  • Timo Bingmann
    Timo Bingmann
    2013-10-23

    The only advantage of mmap is that there may be less copying around of data. However, with plain mmapped data you don't do prefetching or overlapping I/O, which hav a higher potential to speed up your application.
    Timo