On Fri, May 30, 2014 at 06:47:15PM +0200, Stephan von Krawczynski wrote: > > I'm no expert on this, but it sounds to me like the file copy is using > > memory to cache disk blocks, swapping out the memory that is the > > emulated memory of the guests. It seems to me that the solution to > > that is to force the Qemu process's memory space to remain in RAM. > > > > Is there a way to do that in Linux? > > No.
Unrelated to solving the original problem, just wanted to point out this is in fact trivially possible, and there have been patches in the past to implement it. See http://lists.gnu.org/archive/html/qemu-devel/2012-09/msg05081.html and http://linux.die.net/man/2/mlockall David
