[v5,22/22] powerpc/mm: Add speculative page fault

[Sergey Senozhatsky]

On (11/02/17 15:11), Laurent Dufour wrote:
> On 26/10/2017 10:14, kemi wrote:
> > Some regression is found by LKP-tools(linux kernel performance) on this patch series
> > tested on Intel 2s/4s Skylake platform. 
> > The regression result is sorted by the metric will-it-scale.per_process_ops.
> 
> Hi Kemi,
> 
> Thanks for reporting this, I'll try to address it by turning some features
> of the SPF path off when the process is monothreaded.

make them madvice()-able?
not all multi-threaded apps will necessarily benefit of SPF. right?
just an idea.

	-ss