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perf-topdown

Combine devkit top-down and perf annotate data to diagnose CPU performance bottlenecks. Cross-validate "where" (perf annotate, which instructions stall) with "why" (top-down, which pipeline stage is blocked). Use this skill whenever the user wants to understand why a program doesn't reach theoretical peak performance, needs combined top-down + perf hotspot analysis, or asks about multi-level bottleneck diagnosis. All perf-level analysis methods (record, annotate, SPE, PMU events, DDRC bandwidth) are covered by the perf-hotspot skill.

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Source facts

Repository
kunpengcompute/skills
Last source activity
June 3, 2026 at 03:08
Detected SKILL.md language
Chinese
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