A Greener, Cost-Effective Cloud with Serverless WebAssembly
summary
Software carbon intensity uses C/R = (O + M)/rate and web assembly plus serverless claims to cut O by packing many tiny modules onto the same hardware. Uses Spin (open source) and WASI runtimes; example binaries: ~2.3 MB JIT, ~1.1 MB AOT versus multi-megabyte container images. Cold starts under 1 ms versus ~125 ms for microVMs. Demo runs 10K calls to 500 Spin apps on Nomad with ~9 ms peak latency and 5.8 ms average, arguing higher density on 8 cores/32 GB.
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chapters (14)
- 0:00Introduction
- 1:04Sustainability in tech
- 2:31What is WebAssembly
- 5:19Spin framework
- 7:04Live demo: HTTP API
- 9:59Trade-offs of WebAssembly
- 12:06From data centers to serverless
- 13:31Multi-tenancy and hardware efficiency
- 16:26WebAssembly vs microVMs
- 20:45Demo: 10K calls in 10s
- 24:19Hardware challenges in cloud
- 26:24Component model and future
- 29:11Next steps and resources
- 30:13Q&A
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