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| Metric | Cloudflare Workers | Python (CPython) | Firecracker | ROCm |
|---|---|---|---|---|
| Score | B+75 | B71 | B70 | C56 |
| Type | Edge | Language | MicroVM | |
| Execution | jit | interpreted | aot | aot |
| Interface | platform | cli | api | sdk |
| Cold Start | <1ms | 50ms | 125ms | 200ms |
| Memory | 128MB | 15MB | 5MB | 600MB |
| Startup | <1ms | 10ms | 100ms | 100ms |
| Isolation | process | process | microvm | hardware |
| Maturity | production | production | production | stable |
| Languages | JavaScript, TypeScript, Rust, C, C++ | Python | Any | C, C++, Python |
| License | Proprietary | Other | Apache-2.0 | MIT |
| Links |