big o - What is the time complexity of mmap in Linux? -


in big o notation guess , respect size of memory requested. also, can assume memory not committed lazily because makes things complicated.

to precise call mmap(0, n, prot_read | prot_write, map_private | map_anonymous, -1, 0) n variable.

in reference state that,

map_anonymous initialize region zeros.

i believe process o(n) complexity, possibly more efficient :

on systems using private anonymous mmaps more efficient using malloc large blocks. not issue gnu c library, included malloc automatically uses mmap appropriate.


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