On Fri, 2012-03-16 at 13:34 -0500, Christoph Lameter wrote: > On Fri, 16 Mar 2012, Peter Zijlstra wrote: > > > Add another layer of fallback policy to make the home node concept > > useful from a memory allocation PoV. > > > > This changes the mpol order to: > > > > - vma->vm_ops->get_policy [if applicable] > > - vma->vm_policy [if applicable] > > - task->mempolicy > > - tsk_home_node() preferred [NEW] > > - default_policy > > > > Note that the tsk_home_node() policy has Migrate-on-Fault enabled to > > facilitate efficient on-demand memory migration. > > The numa hierachy is already complex. Could we avoid adding another layer > by adding a MPOL_HOME_NODE and make that the default? Not sure that's really a win, the behaviour would be the same we just have to implement another policy, which is likely more code. -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@xxxxxxxxx. For more info on Linux MM, see: http://www.linux-mm.org/ . Fight unfair telecom internet charges in Canada: sign http://stopthemeter.ca/ Don't email: <a href