> YAMAMOTO Takashi <yamt@mwd.biglobe.ne.jp> writes:
> > attached patch shrinks pv_entry by eliminating pv_pmap member.
> > while this increases cost to get pmap pointer a little,
> > i think size of pv_entry is more important.
> >
> > any comments?
> 
> Have you benchmarked operation with and without pv_pmap?

not yet.

YAMAMOTO Takashi