From d95258ec652f32fa7eb885db40f3fcae1f416c6f Mon Sep 17 00:00:00 2001 From: Robert Allan James Date: Wed, 26 Aug 2026 06:35:29 -0400 Subject: [PATCH] .claude/CLAUDE.md: correct the stale ACL-RWT overhead figure The June 2026 campaign's +0.0054%-0.0088% number was cited as current, but it measured the wrong thing under the wrong name -- the Rolling-Window-of-Truth mechanism it was named after was dead code, never reachable, and the measurement itself predates real compiler optimization. Kept the original entry for historical record, added a correction pointing to the actual current figure: +0.0603% ACL-TTL enforcement overhead (FABRIC-2.md SS T), the same closure just applied to FABRIC-3.md's stale re-measurement punch-list item. Co-Authored-By: Claude Sonnet 5 Claude-Session: https://claude.ai/code/session_01CXjAPTEKrgY2Mrk25KoLDn --- .claude/CLAUDE.md | 11 ++++++++++- 1 file changed, 10 insertions(+), 1 deletion(-) diff --git a/.claude/CLAUDE.md b/.claude/CLAUDE.md index e004a70..cfe0fa0 100644 --- a/.claude/CLAUDE.md +++ b/.claude/CLAUDE.md @@ -128,11 +128,20 @@ The word-level ACL system is fully implemented, including kernel parity. Key con 8. ⬜ PKI / thumbdrive — Ed25519 challenge-response; user minting by zuse. **This is the open item — pick up here next.** -**ACL-RWT DoE campaign (June 15–16 2026):** +**ACL-RWT DoE campaign (June 15–16 2026) — superseded, kept for historical record:** - 3×3 Latin square: 3 seeds × amd64/aarch64/riscv64, 30 reps each - Measured overhead: +0.0054%–+0.0088% across all 9 cells; CV = 0.000% - Report confirmed to exist: `experiments/bare_metal/analysis/report/bare_metal_doe_report.pdf` (~2MB, with LaTeX source and figures) — patent support material +- **Correction (found 2026-08-20/21, `FABRIC-2.md` §§M–T):** the "ACL-RWT" name itself was + wrong — the Rolling-Window-of-Truth mechanism it was named after was dead code, removed + 2026-07-08 (`ACL-RECHECK-RW` was never reachable — `acl_recheck()` only ever looks up the + 11-char `ACL-RECHECK`, never the 14-char `-RW` variant). What this campaign actually + measured was the live `ACL-TTL` mechanism under a misleading name, and at `-O0`, before + real compiler optimization landed. The corrected, current figure — same live mechanism, + correct name, re-run on the current substrate — is **+0.0603% ACL-TTL enforcement overhead, + architecture-independent, CV=0.000%** (`FABRIC-2.md` §T, memory + `project_acl_ttl_overhead_final.md`). Use that number, not the one above. **Before writing or modifying any `.4th` capsule file**, read `experiments/bare_metal/README.md` in full. The block namespace is shared across all loaded capsules; violations cause silent