Re: [Qemu-devel] Are there plans to achieve ram live Snapshot feature?

[Alex Bligh]

On 14 Aug 2013, at 08:53, Stefan Hajnoczi wrote:

> The fork child can minimize the chance of out-of-memory by using
> madvise(MADV_DONTNEED) after pages have been written out.

This may also be helpful (last clause) before starting writing.

       MADV_SEQUENTIAL
              Expect  page references in sequential order.
              (Hence, pages in the given range can be aggressively
              read ahead, and may be freed soon after they
              are accessed.)

-- 
Alex Bligh