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| Metric | Cloudflare Workers | Firecracker | AWS Lambda | ROCm |
|---|---|---|---|---|
| Score | B+75 | B70 | B-65 | C56 |
| Type | Edge | MicroVM | Serverless | |
| Execution | jit | aot | hybrid | aot |
| Interface | platform | api | platform | sdk |
| Cold Start | <1ms | 125ms | 200ms | 200ms |
| Memory | 128MB | 5MB | 128MB | 600MB |
| Startup | <1ms | 100ms | 100ms | 100ms |
| Isolation | process | microvm | microvm | hardware |
| Maturity | production | production | production | stable |
| Languages | JavaScript, TypeScript, Rust, C, C++ | Any | JavaScript, TypeScript, Python, Java, Go, Ruby, .NET, Rust | C, C++, Python |
| License | Proprietary | Apache-2.0 | Proprietary | MIT |
| Links |