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| from __future__ import annotations | |
| import statistics | |
| import time | |
| from privacy_finality.authority import PermitAuthority, WorkloadKey | |
| from privacy_finality.demo import build_support_act | |
| from privacy_finality.ped import ProtectedEnforcementDomain | |
| from privacy_finality.replay_store import SQLiteFinalityStore | |
| from privacy_finality.sink import FinalitySink | |
| from privacy_finality.vaults import SMEVaultSet | |
| def us(ns: int) -> float: | |
| return ns / 1_000.0 | |
| def main(n: int = 500) -> None: | |
| validation = [] | |
| issuance = [] | |
| sink_total = [] | |
| vaults = SMEVaultSet.demo() | |
| ped = ProtectedEnforcementDomain(vaults) | |
| authority = PermitAuthority() | |
| workload = WorkloadKey.generate("sme-ai-support-v1") | |
| sink = FinalitySink( | |
| "support-output-gateway-1", | |
| authority.public_key_b64, | |
| vaults.crypto_policy, | |
| SQLiteFinalityStore(), | |
| ) | |
| base = build_support_act() | |
| for i in range(n): | |
| act = type(base)(**{**base.__dict__, "nonce": f"bench-{i}"}) | |
| t0 = time.perf_counter_ns() | |
| grant = ped.validate(act) | |
| t1 = time.perf_counter_ns() | |
| permit = authority.issue(grant, workload, ttl_seconds=600) | |
| proof = workload.proof(permit) | |
| t2 = time.perf_counter_ns() | |
| sink.release(act, permit, proof, dict(grant.selected_values)) | |
| t3 = time.perf_counter_ns() | |
| validation.append(us(t1 - t0)) | |
| issuance.append(us(t2 - t1)) | |
| sink_total.append(us(t3 - t2)) | |
| def line(name, values): | |
| values_sorted = sorted(values) | |
| p95 = values_sorted[int(0.95 * (len(values_sorted) - 1))] | |
| p99 = values_sorted[int(0.99 * (len(values_sorted) - 1))] | |
| print(f"{name:20s} median={statistics.median(values):9.2f} us p95={p95:9.2f} us p99={p99:9.2f} us") | |
| print(f"iterations={n}") | |
| line("PED validation", validation) | |
| line("permit + PoP", issuance) | |
| line("sink verify+commit", sink_total) | |
| print("NOTE: local Python microbenchmark only; not a protocol performance claim.") | |
| if __name__ == "__main__": | |
| main() | |