測試當前Linux 記憶體頁大小 的一個C程式

linux版本：

[oracle@redhat ~]$ cat /etc/redhat-release
Red Hat Enterprise Linux AS release 4 (Nahant Update 3)
[oracle@redhat ~]$ uname -a
Linux redhat 2.6.9-34.EL

[oracle@redhat ~]$ lsb_release -a
LSB Version: :core-3.0-ia32:core-3.0-noarch:graphics-3.0-ia32:graphics-3.0-noarch
Distributor ID: RedHatEnterpriseAS
Description: Red Hat Enterprise Linux AS release 4 (Nahant Update 3)
Release: 4
Codename: NahantUpdate3

程式程式碼：

#include
int main(int argc, char *)
{
printf("System page size: %d ",getpagesize());
}

測試：

[oracle@redhat ~]$ gcc -o testMem testMem.c
[oracle@redhat ~]$ ./testMem
System page size: 4096

linux提供的另外的一個命令：

[root@redhat ~]# getconf PAGE_SIZE
4096