Cloud Run Gen2

Cloud Run Gen2 provides a full Linux-compatible environment with faster startup times and expanded system call support for demanding serverless workloads.

Gen2 moves beyond the gVisor sandbox to a micro-VM architecture (using a Linux 5.15+ kernel) that supports Network File System (NFS) mounts and Google Cloud Filestore. Performance is the priority: cold starts drop by up to 50% for large containers while resource limits scale to 32GB of RAM and 8 vCPUs. This environment enables specific use cases like mounting shared volumes, accessing /dev/shm for high-speed IPC, and running legacy binaries that require standard Linux syscalls. It is the definitive choice for data-heavy pipelines and applications needing deep OS integration.

https://cloud.google.com/run/docs/configuring/execution-environments