Lambda Over-Provisioned Memory
Lambda bills for memory allocated multiplied by duration, so memory the function never touches is billed on every single invocation.
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AWS
Found, explained, handed over.
Findings with a dollar figure attached, idle, oversized, orphaned, unscheduled and undiscounted spend.
Detect
ZopNight checks this automatically across AWS, with read-only access to the account.
Explain
Every finding says exactly what to change: Reduce memory on the Lambda function. Where the saving can be proven it is priced; where it cannot, the finding says so.
Fix
The finding opens with the fix already written out, step by step, so it is one ticket, not an investigation.
- Applies to
- Lambda Functions on AWS
- The fix, by hand
- Check Lambda function's configured memory (currently over 512 MB).
- Review CloudWatch Maximum Memory Used metric.
- If peak usage under 50% of configured memory, reduce it.
- Set memory to next 128 MB tier above peak usage.
- Test function performance after the change.
These are the steps the finding carries in the product.
- Category
- Rightsizing. Resources sized for headroom they never use. A smaller size runs the same workload for less.
- Where it appears
- The Savings tab of Recommendations, with every affected resource listed.
- Rule ID
RC-050- Full reference
Related checks
See the oversized resources in your account.
Connect a read-only role and the first pass runs on your own estate. This check, and the rest of the catalogue, with it.
Prefer to talk it through first? Book 20 minutes with the team.
- $30M+annualised cloud spend under management
- 550K+resources tracked since launch
- 20-60%off the bill in the first month
- SOC 2Type II report, plus ISO 27001
Figures published on zop.dev.