Both reports were produced by a harness that had just changed, so their stamps named a commit without that code in it. Re-running them on an idle machine puts the stamp and the source back in sync. Recall did not move: all seven leg configurations reproduce to the third decimal, which is the part of the number anyone should act on. Latency moved within its usual load band, and the encoder probe came in slower this time, so the picture index's build cost is now quoted as a band rather than a single remembered figure.
bench — the measurement harness
Everything here measures the product as it is. No arm may read a benchmark gold label.
run order
python -m bench.fetch_corpus # 19 GB of third-party material -> bench/corpus + ~/ely_eye_bench_data
python -m bench.build_sets # freeze the 6 query sets -> bench/sets/
python -m bench.validate_sets # schema + gold + scope + modality checks (b-2 gate)
python -m bench.fetch_models # dense + rerank models used by the ablation arms
python -m bench.ingest_baseline # the unmodified product ingesting the whole corpus (16 -> 8 workers)
python -m bench.run # five-arm ablation + latency/scale -> bench/reports/BASELINE.md
python -m pytest bench/tests -q # metric definitions, hand-computed
bench/runs/ and bench/corpus/ are gitignored; bench/corpus/manifest.jsonl is tracked so the
corpus is reproducible from the manifest alone.
the arms (b-3)
| arm | what it is |
|---|---|
bm25_only |
the product's sparse signal alone |
dense_only |
the product's dense signal alone (product flag is off today) |
graph_only |
the product's graph signal alone — atom.relations is never populated, so it is a constant |
no_rerank |
the product's exact 0.55 / 0.35 / 0.10 fusion |
fusion_rerank |
the same fusion plus a cross-encoder rerank, the upper bound of the current design |
python -m bench.run also drives the unmodified RetrievalService.search over the merged
database and reports its latency plus how far its top-10 differs from the fast BM25 path.
known environment artifact
pi-lens' pyright reports Import "bench.sets_common" could not be resolved (and the same for
bench.metrics, bench.systems, ely_eye.*, cv2, onnxruntime, pypdf.errors) even though
every one of those imports works. It is not a repo defect:
effective_configon any bench file returns0 config file(s)withresolvedCwdat the repo root, so neitherpyproject.toml [tool.pyright]norpyrightconfig.json(both of which carryextraPaths: [".", "backend/src"]) is being read by that runner.- Runtime proof, run from the repo root with
.venvactive:
.venv/bin/python -c "import bench.sets_common, bench.metrics, bench.systems, bench.run, bench.ingest_baseline, \
bench.build_mmlongbench, ely_eye.config, ely_eye.db, cv2, onnxruntime, pypdf.errors; print('runtime proof OK')"
Treat that command as the check of record for import health; treat pyright's type findings
(it has caught real defects here: an AtomRunner typo, missing strict=True on zip,
dict[str, object] over-narrowing) as separate and worth fixing.
The pi-lens mypy cascade also replays stale findings after a fix: it attributes another
file's lines to whichever file was edited last (e.g. bench/fetch_models.py:107: "object" has no attribute "encode", where line 107 of that file is a Path call and the quoted text is
from bench/systems.py). The check of record is a fresh-cache run, which has passed on every
current file:
rm -rf /tmp/mypycache && .venv/bin/python -m mypy --cache-dir /tmp/mypycache bench/ # Success: no issues found
.venv/bin/python -m ruff check bench/ # All checks passed
.venv/bin/python -m pytest bench/tests -q # all green
corpus facts that constrain the numbers
- 50,789 sources / 5,308 queries (2,928 answerable, 2,380 unanswerable), all third-party.
- Video-MME ships mp4s for 129 of 900 videos; the set uses those 129 (387 questions).
- Video-MME has no temporal gold, so its gold region is the whole video — recorded in the set manifest.
- ScreenSpot-v2 boxes are
[x, y, w, h], verified against 755 image headers (xywh in bounds 1271/1272). - CodeSearchNet docstrings appear verbatim inside the code, so the query text is stripped before ingest or BM25 gets a free exact match.
- The product keys a source by
{stem[:48]}_{sha256[:16]}, so identical bytes in two sets collapse to one product source;ingest_report.jsonreportsshared_source_ids.