[erlang-questions] Managing a huge binary file

Jon Schneider <>
Tue Apr 30 14:37:43 CEST 2013


> It is a myth that mmap helps you to read file faster.

I can quite believe that but it does save you wasting memory by
duplicating data.

Interestingly last time I looked SunOS's implementation of cat used mmap
(for a file obviously).

Jon





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