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

[Dario Faggioli <dario.faggioli@xxxxxxxxxx>]

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.)

Regards,
Dario
-- 
<<This happens because I choose it to happen!>> (Raistlin Majere)
-----------------------------------------------------------------
Dario Faggioli, Ph.D, http://about.me/dario.faggioli
Senior Software Engineer, Citrix Systems R&D Ltd., Cambridge (UK)

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