The Future of Green Cloud: Serverless WebAssembly on Arm64 Architecture
summary
Claim: combining WebAssembly with Arm64 cuts operational emissions and costs by packing more work per watt. Evidence: sub-millisecond startups for Wasm modules, Spin builds and runs components locally and SpinKube on Kubernetes, a demo loads 370,000 modules with ~3.38 ms latency and a k6-based perf suite. Case study: a migration to SpinKube plus Ampere Arm64 reduces compute cost ~60%. Hardware math: 18 Arm64 servers (12.7 kW/rack) vs 41 x86 servers (~35 kW/rack) and 2.8x less power per Ampere chip.
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chapters (14)
- 0:00Green Cloud and WebAssembly intro
- 2:03Software Carbon Intensity
- 5:15Green Software Stack
- 6:37Sustainable programming languages
- 9:29Serverless limitations
- 10:56WebAssembly for scale-to-zero
- 15:15Spin serverless WebAssembly demo
- 16:59Performance metrics explained
- 19:29Arm64 vs x86 performance
- 23:00WebAssembly + Arm64 efficiency
- 24:04Spin Cube performance testing demo
- 26:33Cost savings with WebAssembly
- 27:56Sound sensor WebAssembly demo
- 28:39Q&A
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