On Wed, 15 Jan 2020 18:23:05 +0530, Anupam Kapoor said: > On Wed, 15 Jan 2020 at 6:02 PM Sumit Kumar <[email protected]> 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".
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