AWS - Lambda
A developer notices their Lambda cost is higher than expected. They set memory to 1024 MB but function runs only 100 ms. What is the likely issue?
A developer notices their Lambda cost is higher than expected. They set memory to 1024 MB but function runs only 100 ms. What is the likely issue?
medium📝 Debug Q14 of 15
Step-by-Step Solution
Solution:
Step 1: Review memory and execution time relation
Cost depends on memory size multiplied by execution time. High memory with short time still costs more than lower memory.Step 2: Identify cost cause
Setting memory to 1024 MB increases GB-seconds cost even if function runs only 100 ms.Final Answer:
Memory size is too high for short execution time -> Option AQuick Check:
High memory + short time can increase cost [OK]
Quick Trick: High memory with short run still costs more [OK]
Common Mistakes:
- Assuming short execution time always means low cost
- Ignoring memory size impact
- Thinking free tier always applies
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