Manual Pages  — GETPAGESIZE

getpagesize – get system page size

LIBRARY SYNOPSIS DESCRIPTION SEE ALSO HISTORY

Standard C Library (libc, -lc)

#include <unistd.h>

int
getpagesize(void);

The getpagesize() 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.

IEEE Std 1003.1-2001 ("POSIX.1") removed getpagesize. Portable applications should use ‘sysconf(_SC_PAGESIZE)’ instead.

The getpagesize() function appeared in BSD 4.2 .