RISC-V Design · All levels

Post-Silicon Debug for RISC-V Platforms: Reports and Metrics

Reports and Metrics for Post-Silicon Debug for RISC-V Platforms.

Reports and metrics

Reports and Metrics for Post-Silicon Debug for RISC-V Platforms is anchored on First-failure isolation time, reproducibility rate of silicon issues, and escaped-defect trend after debug closure.. Convert observations into mechanism-backed decisions with explicit ownership.

Before/after trend

diagram
BEFORE / AFTER TREND - Post-Silicon Debug for RISC-V Platforms

First-failure isolation time, reproducibility rate of silicon issues, and escaped-defect trend after debug closure.
  ^
  |                           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 - Post-Silicon Debug for RISC-V Platforms

First-failure isolation time, reproducibility rate of silicon issues, and escaped-defect trend after debug closure. 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 First-failure isolation time, reproducibility rate of silicon issues, and escaped-defect trend after debug closure. 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.