On Tue, Nov 24, 2015 at 03:30:23PM +0100, Paolo Bonzini wrote: > > > On 24/11/2015 15:25, Michael S. Tsirkin wrote: > > I'm worried that things go slow and people don't have a way to find out > > why, and documentation isn't the first place people look for when facing > > a performance issue. > > > > At the moment we call MADV_HUGEPAGE unconditionally and unfortunately > > there's no way to report it's not having the intended effect. > > > > Maybe we want a "don't enable hugepages" flag. > > That could also have the effect of suppressing the warnings. > > THP is anyway slower than hugetlbfs. If people really want performance, > they need to use hugetlbfs. For everything else I'd be surprised if > they even notice. > > Paolo
If you want to post and merge a patch removing this warning completely, and revert the original one, that's fine with me. -- MST