On 30.05.2013 16:41, Paolo Bonzini wrote:
Il 30/05/2013 16:38, Peter Lieven ha scritto:
You could also scan the page for nonzero values before writing it.
i had this in mind, but then choosed the other approach.... turned out to be a
bad idea.
alexey: i will prepare a patch later today, could you then please verify it
fixes your problem.
paolo: would we still need the madvise or is it enough to not write the zeroes?
It should be enough to not write them.
Problem: checking the pages for zero allocates them. even at the source.
Peter
