%%%TOP_BAR%%% man7.org > Linux > man-pages Linux/UNIX system programming training %%%PAGE_START%%% NAME | SYNOPSIS | DESCRIPTION | RETURN VALUE | ERRORS | VERSIONS | CONFORMING TO | BUGS | SEE ALSO | COLOPHON MINCORE(2) Linux Programmer's Manual MINCORE(2) top mincore - determine whether pages are resident in memory top #include <unistd.h> #include <sys/mman.h> int mincore(void * addr , size_t length , unsigned char * vec ); Feature Test Macro Requirements for glibc (see feature_test_macros(7) ): mincore (): _BSD_SOURCE || _SVID_SOURCE top mincore () returns a vector that indicates whether pages of the calling process's virtual memory are resident in core (RAM), and so will not cause a disk access (page fault) if referenced. The kernel returns residency information about the pages star...