RISC-V Design · All levels
Control Signal Generation from Opcode to Datapath: Reports and Metrics
Reports and Metrics for Control Signal Generation from Opcode to Datapath.
Reports and metrics
Reports and Metrics for Control Signal Generation from Opcode to Datapath is anchored on Incorrect control assertion rate in regression and decode-to-execute control fanout delay.. Convert observations into mechanism-backed decisions with explicit ownership.
Before/after trend
diagram
BEFORE / AFTER TREND - Control Signal Generation from Opcode to Datapath
Incorrect control assertion rate in regression and decode-to-execute control fanout delay.
^
| 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.Root-cause tree
diagram
ROOT CAUSE TREE - Control Signal Generation from Opcode to Datapath
Incorrect control assertion rate in regression and decode-to-execute control fanout delay. regressed
|
reproducible on fixed seed?
/ \
no yes
| |
env/tool drift first failing domain?
/ | \
decode execute memory/MMU
| | |
control map bypass/FU TLB/walk/perm
|
privilege/CSR side effects checked?
Stop at first confirmed mechanism, then assign explicit owner + fix proof.Track Incorrect control assertion rate in regression and decode-to-execute control fanout delay. on representative workloads, not just microbenchmarks.
Include build/runtime/privilege metadata in report headers.
Pair performance movement with correctness and reliability checks.
Report tail stability, not only mean uplift.