Re: [PATCH v2] KVM: PPC: e500mc: Enhance tlb invalidation condition on vcpu schedule

[Scott Wood <scottwood@freescale.com>]

On Tue, 2014-06-17 at 14:04 -0500, Caraman Mihai Claudiu-B02008 wrote:
> > -----Original Message-----
> > From: Wood Scott-B07421
> > Sent: Tuesday, June 17, 2014 6:36 PM
> > To: Caraman Mihai Claudiu-B02008
> > Cc: kvm-ppc@vger.kernel.org; kvm@vger.kernel.org; linuxppc-
> > dev@lists.ozlabs.org
> > Subject: Re: [PATCH v2] KVM: PPC: e500mc: Enhance tlb invalidation
> > condition on vcpu schedule
> > 
> > On Tue, 2014-06-17 at 12:02 +0300, Mihai Caraman wrote:
> > > On vcpu schedule, the condition checked for tlb pollution is too loose.
> > > The tlb entries of a vcpu become polluted (vs stale) only when a
> > different
> > > vcpu within the same logical partition runs in-between. Optimize the
> > tlb
> > > invalidation condition taking into account the logical partition id.
> > >
> > > With the new invalidation condition, a guest shows 4% performance
> > improvement
> > > on P5020DS while running a memory stress application with the cpu
> > oversubscribed,
> > > the other guest running a cpu intensive workload.
> > 
> > See
> > https://lists.ozlabs.org/pipermail/linuxppc-dev/2014-June/118547.html
> 
> Thanks. The original code needs just a simple adjustment to benefit from
> this optimization, please review v3.

Where is v3?  Or is it forthcoming?

-Scott