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GETPAGESIZE(3) Library Functions Manual GETPAGESIZE(3)

getpagesize — get system page size

Standard C Library (libc, -lc)

#include <unistd.h>

int
getpagesize(void);

The () function 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)

The getpagesize() function appeared in 4.2BSD.

June 4, 1993 macOS