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| Metric | Cloudflare Workers | V8 | Python (CPython) | Firecracker |
|---|---|---|---|---|
| Score | B+75 | B74 | B71 | B70 |
| Type | Edge | Language | Language | MicroVM |
| Execution | jit | jit | interpreted | aot |
| Interface | platform | embedded | cli | api |
| Cold Start | <1ms | 5ms | 50ms | 125ms |
| Memory | 128MB | 30MB | 15MB | 5MB |
| Startup | <1ms | 2ms | 10ms | 100ms |
| Isolation | process | process | process | microvm |
| Maturity | production | production | production | production |
| Languages | JavaScript, TypeScript, Rust, C, C++ | JavaScript, TypeScript, WebAssembly | Python | Any |
| License | Proprietary | BSD-3-Clause | Other | Apache-2.0 |
| Links |