Re: [Xen-devel] [PATCH v7 3/3] tools & docs: add tools and docs support for Intel CDP

[Ian Campbell <ian.campbell@xxxxxxxxxx>]

On Wed, 2015-10-14 at 11:08 +0200, Dario Faggioli wrote:
> On Tue, 2015-10-13 at 16:53 +0800, He Chen wrote:
> > diff --git a/docs/misc/xl-psr.markdown b/docs/misc/xl-psr.markdown
> > index c32e25c..9b08ee3 100644
> > --- a/docs/misc/xl-psr.markdown
> > +++ b/docs/misc/xl-psr.markdown
> > @@ -127,6 +127,59 @@ Per domain CBM settings can be shown by:
> >  
> >  `xl psr-cat-show`
> >  
> > +## Code and Data Prioritization (CDP)
> > +
> > +Code and Data Prioritization (CDP) Technology is an extension of
> > CAT, which
> > +is available on Intel Broadwell and later server platforms. CDP
> > enables
> > +isolation and separate prioritization of code and data fetches to
> > the L3
> > +cache in a software configurable manner, which can enable workload
> > +prioritization and tuning of cache capacity to the characteristics
> > of the
> > +workload. CDP extends Cache Allocation Technology (CAT) by providing
> > +separate code and data masks per Class of Service (COS).
> > +
> > +CDP can be enabled by adding `psr=cdp` to Xen command line.
> > +
> > +When CDP is enabled,
> > +
> > + * the CAT masks are re-mapped into interleaved pairs of masks for
> > data or
> > +   code fetches.
> > +
> > + * the range of COS for CAT is re-indexed, with the lower-half of
> > the COS
> > +   range available for CDP.
> > +
> > +CDP allows the OS or Hypervisor to partition cache allocation in a
> > more
> > +fine-grained.
> > 
> "In a more fine-grained" "way"? Or "manner"?
> 
> (I'm not a native speaker, though, so if that's not the case, sorry for
> the noise.)

You are right, there is a word missing. "manner" would be my interpretation
of what was intended.

Ian.


> 
> Regards,
> Dario

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