getpagesize - get system page size
Standard C Library (libc, -lc)
This interface is obsoleted by sysconf(3).
getpagesize() returns the number of bytes in a page. Page granularity is
the granularity of many of the memory management calls.
The page size is a system page size and may not be the same as the underlying
hardware page size.
pagesize(1), sbrk(2), sysconf(3)
The getpagesize function call appeared in 4.2BSD.
BSD June 4, 1993 BSD
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