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    SubjectRE: How to make Linux scale up WRT bandwidth and size?
    On Thu, 29 Apr 1999, Jeremy Fitzhardinge wrote:

    > You can't mmap block devices. I don't think avoiding the filesystem
    > will help particularly, though you could avoid some filesystem
    > overhead in the real-time path by preallocating the file.

    How come I can mmap() /dev/zero ?

    "A mind opened by new ideas can never return to its original limits"

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