This is an example of the response times from command line calls time curl <cloudrun_url>/api/rnd to various deployments. Response times did vary slightly, but stayed roughly within that range.
Disclaimer: YMMV. Take it with a pinch of salt!
| Runtime | Built Container Image Size | Google Cloud Run - Cold Start Response Times |
|---|---|---|
| Open Liberty | 262.2 MB | 20.877s |
| Quarkus (JVM) | 197.2 MB | 5.371s |
| Quarkus (Native) | 63.7 MB | 1.394s |
| Helidon (JVM) | 177.4 MB | 6.333s |