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Here is an Nsight Compute report for a slow kernel. Read it, name the bottleneck, and tell me what you would change.

Separate cache activity from DRAM traffic, check the access width and active lanes, and use a controlled layout change to test a profiler hypothesis. A few percentages cannot predict the fixed kernel’s runtime.

Updated Oct 2026 · Learn how AI infrastructure works through explanations, worked examples and diagrams, then practise applying it to interview questions.

Separate cache activity from DRAM traffic, check the access width and active lanes, and use a controlled layout change to test a profiler hypothesis. A few percentages cannot predict the fixed kernel’s runtime.

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Work through the numbers

Change the assumptions in a free calculator, then explain what the result establishes and what still needs measurement.

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FEDITOR'S NOTE

Distinguish reported throughput metrics from useful work, connect sector counts to actual instruction addresses, and investigate the occupancy gap without treating stalled resident warps as absent.

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