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| Metric | Cloudflare Workers | V8 | gVisor | Python (CPython) |
|---|---|---|---|---|
| Score | B+75 | B74 | B72 | B71 |
| Type | Edge | Language | MicroVM | Language |
| Execution | jit | jit | hybrid | interpreted |
| Interface | platform | embedded | cli | cli |
| Cold Start | <1ms | 5ms | 50ms | 50ms |
| Memory | 128MB | 30MB | 20MB | 15MB |
| Startup | <1ms | 2ms | 30ms | 10ms |
| Isolation | process | process | microvm | process |
| Maturity | production | production | stable | production |
| Languages | JavaScript, TypeScript, Rust, C, C++ | JavaScript, TypeScript, WebAssembly | Any | Python |
| License | Proprietary | BSD-3-Clause | Apache-2.0 | Other |
| Links |