Performance analysis turns counter and trace data into a ranked bottleneck hypothesis. Measurement comes first with trusted counters and top-down slots, then roofline places the kernel and selects the tuning move.
Topic | Lessons | Description | Time |
|---|---|---|---|
5 | A repeatable performance method: trusted counters, CPI and MPKI math, top-down slots, and one-experiment triage. | 40 min | |
4 | Roofline bounds, arithmetic intensity and the tuning moves that shift a kernel toward its ceiling. | 30 min |
The kernel is memory-bound, so performance is capped by bytes delivered rather than peak compute. Locality, tiling or bandwidth moves shift it right, as the Roofline and Tuning topic shows.