Lightning Talk: Wasm for Heterogeneous IoT Devices
Lightningat Cloud Native Wasm Day North America 2021 · on Tuesday, 2021-10-12· at 13:35· Room 501 ABC + Online·
summary
Wasm runs on MCU-class IoT using WebAssembly Micro Runtime with AOT compilation, an SDK and an automated cloud-to-edge pipeline that compiles per-target and deploys OTA; CoreMark benchmarks show ESP32 AOT ≈ one third native and Allwinner ARM A7 ≈ half native, AOT binaries are larger than interpreted so code is relocated to flash and mapped executable via the MMU, memory overhead is higher but performance and deployment automation prove the approach viable.
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chapters (10)
- 0:00Start
- 1:05Goals
- 2:58Edge Stack
- 3:15Several Options of Safe Language Runtimes
- 3:38Evaluation of Runtimes
- 4:12WebAssembly Runtimes on MCU
- 6:07WAMR Performance Results: Coremark
- 7:49Solution: Execute from flash memory
- 8:20Cloud to Edge Pipeline
- 8:50Conclusions
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