RE: [PATCH V4 0/7] x86/intel_rdt: Intel Cache Allocation Technology

From: Luck, Tony
Date: Wed Feb 25 2015 - 11:40:13 EST


> The CAT thing was annoying already, but at least one can find that in
> the SDM, this RDT thing, not a single mention.

The problems of development at the bleeding edge. Would you rather Linux
sat on the sidelines until there are enough Google hits from other users of
new features?

I did get one hit for a search for: intel "resource director technology" ... but
it only has one line in a table with a 50,000' view of what it does.

http://www.intel.com/content/dam/www/public/us/en/documents/guides/xeon-intel-server-processor-comparison-guide.pdf

Technology: Intel Resource Director Technology

Description: Allows the hypervisor to monitor Last Level Cache usage at the application
and VM levels.

Benefit: Helps to improve performance and efficiency by providing better
information for scheduling, load balancing, and workload migration

Which isn't any help in evaluating this patch series :-(

-Tony


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