On 04/09/2012 10:46 PM, Marcelo Tosatti wrote: > Perhaps the mmu_lock hold times by get_dirty are a large component here? That's my concern, because it affects the scaling of migration for wider guests. > If that can be alleviated, not only RO->RW faults benefit. Those are the most common types of faults on modern hardware, no? -- error compiling committee.c: too many arguments to function -- To unsubscribe from this list: send the line "unsubscribe kvm" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html