NOTES
 Note that ftime(3), profil(3) and ulimit(3) are implemented as library functions.  Some system calls, like alloc_hugepages(2), free_hugepages(2), ioperm(2), iopl(2), and vm86(2) only exist on certain architectures. 
 Some system calls, like ipc(2) and {create,init,delete}_module(2) only exist when the Linux kernel was built with support for them. 
  
"SEE ALSO"
 obsolete(2)