Unlock System Performance in Dynamic Environments
Intel® Resource Director Technology (Intel® RDT) brings new levels of visibility and control over how shared resources such as last-level cache (LLC) and memory bandwidth are used by applications, virtual machines (VMs), and containers. It’s the next evolutionary leap in workload consolidation density, performance consistency, and dynamic service delivery, helping to drive efficiency and flexibility across the data center while reducing overall total cost of ownership (TCO). As software-defined infrastructure and advanced resource-aware orchestration technologies increasingly transform the industry, Intel® RDT is a key feature set to optimize application performance and enhance the capabilities of orchestration and virtualization management server systems using Intel® Xeon® processors.
Intel® Resource Director Technology (Intel® RDT) Framework
Intel® RDT provides a framework with several component features for cache and memory monitoring and allocation capabilities, including CMT, CAT, CDP, MBM, and MBA. These technologies enable tracking and control of shared resources, such as the Last Level Cache (LLC) and main memory (DRAM) bandwidth, in use by many applications, containers or VMs running on the platform concurrently. RDT may aid “noisy neighbor” detection and help to reduce performance interference, ensuring the performance of key workloads in complex environments.
Cache Monitoring Technology (CMT)
Providing new insight by monitoring the last-level cache (LLC) utilization by individual threads, applications, or VMs, CMT improves workload characterization, enables advanced resource-aware scheduling decisions, aids “noisy neighbor” detection and improves performance debugging.
Cache Allocation Technology (CAT)
Software-guided redistribution of cache capacity is enabled by CAT, enabling important data center VMs, containers or applications to benefit from improved cache capacity and reduced cache contention. CAT may be used to enhance runtime determinism and prioritize important applications such as virtual switches or Data Plane Development Kit (DPDK) packet processing apps from resource contention across various priority classes of workloads.
Code and Data Prioritization (CDP)
As a specialized extension of CAT, Code and Data Prioritization (CDP) enables separate control over code and data placement in the last-level (L3) cache. Certain specialized types of workloads may benefit with increased runtime determinism, enabling greater predictability in application performance.
Memory Bandwidth Monitoring (MBM)
Multiple VMs or applications can be tracked independently via Memory Bandwidth Monitoring (MBM), which provides memory bandwidth monitoring for each running thread simultaneously. Benefits include detection of noisy neighbors, characterization and debugging of performance for bandwidth-sensitive applications, and more effective non-uniform memory access (NUMA)-aware scheduling.
Memory Bandwidth Allocation (MBA)
MBA enables approximate and indirect control over memory bandwidth available to workloads, enabling new levels of interference mitigation and bandwidth shaping for “noisy neighbors” present on the system.
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What Intel® Resource Director Technology (Intel® RDT) Delivers
How can you ensure that your most critical applications are getting the resources they need to maximize their performance? With Intel® Resource Director Technology (Intel® RDT), software-guided hardware capabilities intelligently monitor and control the allocation of key shared system resources to help ensure quality of service (QoS) and deliver monitoring insight and control where you need it.
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