Google Cloud Functions (GCF) employs a pay-as-you-go model, charging based on the number of function invocations, compute time and network egress. The first 2 million invocations per month are free, with subsequent usage billed at $0.40 per million. Compute time is charged in increments of 100ms, with costs varying by allocated memory size. Network egress beyond 5GB/month incurs additional charges.
To optimize GCF billing, consider these strategies:
1. Minimize function runtime: Optimize your code to execute faster, reducing compute time.
2. Efficient resource allocation: Allocate only necessary resources for each function. Over-allocation leads to unnecessary costs.
3. Use Google’s networks: Traffic within Google’s network is cheaper than external traffic. Utilize services like Cloud Storage or Firestore to reduce egress costs.
4. Batch processing: Instead of triggering functions individually, batch multiple requests together to minimize invocation counts.
5. Monitor and analyze: Regularly review Cloud Function logs and metrics to identify cost drivers and potential optimizations.
