Messages in this thread | | | Date | Thu, 26 Feb 2015 20:31:09 +0100 | Subject | Re: [PATCH 7/7] x86/intel_rdt: Add CAT documentation and usage guide | From | Hagen Paul Pfeifer <> |
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On 25 February 2015 at 00:16, Vikas Shivappa <vikas.shivappa@linux.intel.com> wrote:
> +1.2 Why is CAT needed > +--------------------- > + > +The CAT enables more cache resources to be made available for higher > +priority applications based on guidance from the execution > +environment. > + > +The architecture also allows dynamically changing these subsets during > +runtime to further optimize the performance of the higher priority > +application with minimal degradation to the low priority app. > +Additionally, resources can be rebalanced for system throughput > +benefit. (Refer to Section 17.15 in the Intel SDM) > + > +This technique may be useful in managing large computer systems which > +large LLC. Examples may be large servers running instances of > +webservers or database servers. In such complex systems, these subsets > +can be used for more careful placing of the available cache > +resources. > + > +The CAT kernel patch would provide a basic kernel framework for users > +to be able to implement such cache subsets.
Last paragraph can be deleted. If functionality is merged it is not a patch anymore.
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