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Power Management – User Wait Instructions Power Saving for DPDK PMD Polling Workloads Technology Guide

Last Updated: Jan 13, 2023

New instructions have been added to 4th Gen Intel® Xeon® Scalable processors that make power saving easier to achieve while in 100% polling or busy loop workloads. These User Wait instructions allow the workload core to go into a power optimized state and react very quickly when conditions are met to restart processing. This document describes the instructions and shows their use in a selection of use cases.

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