On Wed, 2 Sep 2009, Ankita Garg wrote: > Currently, the behavior of fake numa is not so on x86 as well? Below is > a sample output from a single node x86 system booted with numa=fake=8: > > # cat node0/cpulist > > # cat node1/cpulist > > ... > # cat node6/cpulist > > # cat node7/cpulist > 0-7 > > Presently, just fixing the cpu association issue with ppc, as explained > in my previous mail. >
Right, I'm proposing an alternate mapping scheme (which we've used for years) for both platforms such that a cpu is bound (and is set in cpumask_of_node()) to each fake node with which it has physical affinity. That is the only way for zonelist ordering in node order, task migration from offlined cpus, correct sched domains, etc. I can propose a patchset for x86_64 to do exactly this if there aren't any objections and I hope you'll help do ppc. _______________________________________________ Linuxppc-dev mailing list Linuxppc-dev@lists.ozlabs.org https://lists.ozlabs.org/listinfo/linuxppc-dev