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DPDK Userspace 2019, Bordeaux has ended
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Friday, September 20 • 10:00 - 10:30
Arm64 WFE mechanism and use cases in DPDK - Gavin Hu, ARM

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In this presentation, I will talk about the ARMv8 WFE (Wait For Event) mechanism and how it works and benefits the power and performance by saving cache and memory traffic.
The rte ring, spinlock, ticket lock and other locks use cases were identified and the benchmarking tests already showed significantly positive results while more widely benchmarking on different Arm64 microarchitectures is ongoing. It had no impact on x86 and PPC.
A new API was introduced for easy use of the WFE and in the last I will talk about how and in what contexts it can be used.
Speakers
avatar for Gavin Hu

Gavin Hu

Principal Software Engineer, ARM
Gavin Hu is a Principal Software Engineer at Arm working on DPDK, he ever worked for Juniper networks, Nokia Networks, Intel and Arm. He gained rich experiences and knowledge in this industry. He got his master degree in Computer Architecture in 2004 from Huazhong University of Science... Read More →

Armv8 WFE mechanism and use cases in DPDK pdf
Friday September 20, 2019 10:00 - 10:30 CEST
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  • Session Slides Included Yes