Thanks a lot for your responses Aleix, Anupam and Valdis.

--
Thanks and Regards,
Sumit

On Sat, 18 Jan 2020 at 20:40, Valdis Klētnieks <valdis.kletnieks@vt.edu>
wrote:

> On Wed, 15 Jan 2020 18:23:05 +0530, Anupam Kapoor said:
> > On Wed, 15 Jan 2020 at 6:02 PM Sumit Kumar <sumit686215@gmail.com>
> wrote:
> > > Does C/C++ provide any API / system call that enables user to force the
> > > application to transfer some its physical pages to swap disk ? If so,
> is it
> > > also possible to obtain the least used page using some API ?
> > would madvise not serve your needs ?
>
> There's this word "force" in the question.
>
> The problem is that madvise() is *advice* to the kernel, not a strict
> guarantee.  There's a difference between "If you need to move pages
> to disk, consider these pages first" and "Move them to disk now, whether
> you really wanted to or not".
>
>