RISC-V Design · All levels
RVV Vector Basics: Silicon PPA Impact
Silicon PPA Impact for RVV Vector Basics.
Silicon PPA impact
Silicon PPA Impact for RVV Vector Basics is anchored on Sustained vector utilization across mixed-width kernels while keeping scalar fallback correctness intact.. Convert observations into mechanism-backed decisions with explicit ownership.
Frequency gains that increase bubbles may lose net throughput.
Area growth from extension logic must justify workload value.
Power and thermal stability are release gates, not secondary metrics.
PPA trend view
diagram
BEFORE / AFTER TREND - RVV Vector Basics
Sustained vector utilization across mixed-width kernels while keeping scalar fallback correctness intact.
^
| o target band
| o after fix + reruns
| o
| o baseline (failing)
+--------------------------------------------------> iteration
capture issue isolate mechanism close + monitor
Use this view to confirm the gain is causal and stable across seeds.