Virtualized Frequency Control for Telco Workloads

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" summary

Telco packet-processing apps poll and appear as 100% polling workloads, so kernel governors see no idle time and give zero savings. A user-space power governor proxies guest P‑state requests across a virtio transport into an intel_pstate backend, implemented today over virtio-serial with measured latency around sub-3 ms. The prototype builds a guest→host API and user-space listener that applies P‑state changes; hypercalls/BPF show potential for lower microsecond latencies.

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" chapters (9)

1. 0:00Introduction and agenda
2. 0:22Telco workload characteristics
3. 1:46User space polling applications
4. 3:09Power management challenges
5. 4:14Solving virtualized frequency control
6. 6:44Discussion on Vero interfaces
7. 8:29Latency and performance impact
8. 9:14Application-driven performance
9. 10:24Q&A and closing remarks