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Hi Stefano
Check these scenario hope it works
AWS Lambda Pricing Structure
Requests: You get 1 million free requests per month. Beyond that, you're charged $0.20 per million requests.
Duration: The first 400,000 GB-seconds (roughly 3.2 million seconds of compute time) are free. After that, you're charged $0.00001667 per GB-second.
if a Savings Plan is beneficial, consider these factors
- Expected Request Volume: How many times a month do you anticipate your Lambda functions being invoked? If it stays below 1 million, you won't incur request charges.
- Function Execution Time: How long do your Lambda functions typically run (in milliseconds)? If they stay under 400 milliseconds (0.4 seconds), you won't incur duration charges.
- Memory Allocation: How much memory (in MB) do you allocate to your Lambda functions? Optimizing memory usage can significantly impact costs.
Scenarios for Savings Plans
- Moderate Request Volume (1.5 Million/Month): If you expect to exceed 1 million requests but stay below 2 million, a Savings Plan might be worthwhile if your function execution time is high or your memory allocation is significant.
- High Request Volume (5 Million/Month): Savings Plans become more attractive with higher request volumes, even if execution time is low.
Alternatives to Savings Plans
Reserved Concurrency: If you have predictable request patterns, consider Reserved Concurrency for fixed-rate pricing on Lambda capacity. However, this might not be ideal for a small application with variable usage.
Official AWS Documentation:
AWS Lambda Pricing: https://aws.amazon.com/lambda/pricing/
AWS Lambda Developer Guide: https://docs.aws.amazon.com/lambda/
Additional Resources https://lumigo.io/blog/aws-lambda-vs-ec2/
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asked 2 years ago
As Sandeep mentioned, there is a Free Tier for Lambda that may be enough for your small application. I suggest running your Lambda for a few days and monitor the usage and costs in Cost Explorer. You can also setup a Budget based on the Free Tier metrics so that you get alerted when the forecasted monthly usage will exceed (say 80%) of the free tier. This should give you enough warning before you are charged.
If you see that there are no costs, then you are good. If you see that you are starting to see costs, then Cost Explorer can recommend the right Compute Savings Plan for your usage.