nsight compute

Compare the same 1,024 items under mixed and grouped lane assignments. Derive issue-work waste, then include regrouping and memory costs before claiming a speedup.

Use a profiler summary to form a memory-traffic hypothesis, then check counters, timing and useful work before choosing an optimization.

Count warp sectors for contiguous, strided and masked accesses, then use cache and timing evidence to decide whether changing the mapping helps.

Derive resident-block limits and distinguish resident warps from ready work before trading registers for more occupancy.

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.