Do Intel® Xeon Processors Support Intel® Cache Allocation Technology (Intel® Cat)?

Unable to confirm whether Intel® CAT is supported by Intel® Xeon Processors.

Intel® Cache Allocation Technology (Intel® CAT) serves as an integral component of Intel® Resource Director Technology (Intel® RDT), facilitating effective management and allocation of shared cache and memory resources to optimize workload performance. This technology is supported across various generations of Intel® Xeon® Processors.

Generational Details:

Intel® Xeon® Processor E5 v3 and E5 v4 Families:

• Intel® CAT Support: Introduced the ability to configure and utilize CAT mechanisms within the L3 cache.

Intel® Xeon® Scalable Family (1st Gen, 2nd Gen, 3rd Gen Intel® Xeon® Scalable):

• Features: IPC enhancements and additional improvements in CAT technology.

Intel® Xeon® Scalable Family (3rd Gen and 4th Gen):

• 3rd Gen Intel® Xeon® Scalable: Enhanced Intel® RDT support, including advanced CAT for cache monitoring and allocation.
• 4th Gen Intel® Xeon® Scalable: Features include augmented AI, security, and energy efficiency capabilities.

5th Gen Intel® Xeon® Scalable Processors:

• Features: Incorporate up to 64 cores, increased last-level cache and memory speeds, and improved functionality for contemporary workloads with integrated hardware accelerators.

Intel® Xeon® 6 Processors:

• Features: Offer up to 144 E-cores per socket, 8 DDR5 memory channels per CPU, and support for high-performance computation at scale. CAT is supported within the Intel® RDT framework, facilitating performance prioritization for crucial applications.

For further details, consult the Intel® RDT Architecture Specification section A.2 (Page 133) for specific processor information and capabilities.

Additionally, explore the Intel® Xeon® Processor Scalable Family External Design Specification relevant to your CPU generation.

• Introduction to Cache Allocation Technology
• Intel® Resource Director Technology (Intel® RDT) Architecture Specification
• Intel® Resource Director Technology (Intel® RDT)
• RDT (Intel® Resource Director Technology) — CRI Resource Manager 0.9.2 documentation
• Intel® Resource Director Technology (Intel® RDT) Server Reference Manual