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May 18, 2026 · 1 min read

How would you implement a rolling average in a streaming data scenario where performance is critical, and what algorithms would you use to ensure that calculations are efficient?

To implement a rolling average in a streaming data context, I would use a circular buffer and maintain a running sum. This allows updates to be done in constant time,…

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SOFTWARE_ARCHITECT // AI_ENGINEER

📅 May 18, 2026 ⏱ 1 min read

HW

How would you implement a rolling average in a streaming data scenario where performance is critical, and what algorithms would you use to ensure that calculations are efficient?

COVER // HOW WOULD YOU IMPLEMENT A ROLLING AVERAGE IN A STREAMING DATA SCENARIO WHERE PERFORMANCE IS CRITICAL, AND WHAT ALGORITHMS WOULD YOU USE TO ENSURE THAT CALCULATIONS ARE EFFICIENT?

To implement a rolling average in a streaming data context, I would use a circular buffer and maintain a running sum. This allows updates to be done in constant time, O(1), by removing the oldest value and adding the new one to the sum.

algorithms data streaming performance rolling average

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