Document profile-wide GSQ-RCO A-B test

experiments/gsq-rco-iq3s-ab-v2/README.md

@@ -0,0 +1,18 @@
+# GSQ-RCO IQ3_S profile A/B test
+
+`run-case.sh` starts one isolated llama.cpp test container for either the
+current Q4 reference or GSQ-RCO IQ3_S. It refuses to start while a production
+LLM container is running. Context, GPU split, vision projector, MTP depth and
+batch sizes are explicit command-line arguments so every candidate can use the
+same settings as its corresponding production profile.
+
+The 2026-09-08 run used the existing dependency-free benchmark programs:
+
+- `experiments/dirk-qwen38/bench-case.py`
+- `experiments/dirk-qwen38/quality-ab.py`
+- `dev/QWEN38-FINAL-ACCEPTANCE-v1.json`
+
+Results are retained on Athena in
+`/data/model-benchmarks/gsq-rco-iq3s-ab-v2-20260908/`. The conclusions and
+aggregate measurements are documented in
+`docs/GSQ_RCO_BETA1_20260904.md`.