1#include <sys/sysinfo.h>
 2#include <unistd.h>
 3
 4int get_nprocs_conf()
 5{
 6	return sysconf(_SC_NPROCESSORS_CONF);
 7}
 8
 9int get_nprocs()
10{
11	return sysconf(_SC_NPROCESSORS_ONLN);
12}
13
14long get_phys_pages()
15{
16	return sysconf(_SC_PHYS_PAGES);	
17}
18
19long get_avphys_pages()
20{
21	return sysconf(_SC_AVPHYS_PAGES);	
22}