19-22 March
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Wednesday, March 20 • 14:30 - 15:05
Beyond Default: Harnessing CPU Affinity for Enhanced Performance Across Your Workload Portfolio - Antti Kervinen, Intel & Dixita Narang, Google LLC

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In the pursuit of maximizing computational efficiency, the strategic allocation of CPU resources emerges as a pivotal factor for performance. Restricting workloads to run on a particular set of CPUs, known as CPU pinning or CPU affinity, can be beneficial in certain scenarios to achieve predictable performance, isolation, or resource management goals. In this talk, we delve into CPU affinity, beyond default settings to attain optimal performance across diverse workloads. Participants will gain a thorough understanding of tailoring CPU affinity for their workload portfolio, leading to enhanced performance. The talk explores rising core counts, addressing software challenges and hardware insights, including the implications of CPU cores sharing a cache and the significance of data or PCI device locality. Finally, we cover the "balloons" resource policy in the NRI plugin for Kubernetes, allocating essential CPU cores with automated selection and configurable control across pods.

avatar for Antti Kervinen

Antti Kervinen

Cloud Software Engineer, Intel
Antti Kervinen is a Cloud Orchestration Software Engineer working at Intel, whose interest in Linux and distributed systems has led him from academic research of concurrency to the world of Kubernetes. When unplugged, Antti spends his time outdoors discovering wonders of nature.
avatar for Dixita Narang

Dixita Narang

Software Engineer, Google
Dixita Narang is a Software Engineer at Google on the Kubernetes Node team. With a primary focus on resource management within Kubernetes, Dixita is deeply involved in the development and advancement of the Memory QoS feature, which is currently in the alpha stage. She is a new contributor... Read More →

Wednesday March 20, 2024 14:30 - 15:05 CET
Pavilion 7 | Level 7.3 | S03
  Operations + Performance