On 2012-12-11, at 5:25 PM, Lyndon Nerenberg wrote:
But again, these really are micro-optimizations. mmap() won't make anything
run perceivably faster, but it will introduce the potential for many subtle
bugs. Best to leave well enough alone.
I forgot to say ...
Someone mentioned FreeBSD (I think) and cp using mmap() for copies.
These are *very* OS-specific optimizations. Look at FreeBSD's malloc for an
excellent example of the misuse of mmap() :-P
None of these mmap() "optimizations" is portable; MH's heritage is portability.
--lyndon
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