bigann-1b-batch-update-eval

Batch-update evaluation workload package generated from Odeinjul/bigann-1b-static-search-eval.

Dataset

Source static dataset: Odeinjul/bigann-1b-static-search-eval
Vector count: 1,000,000,000
Dimension: 128
Dtype: uint8
Metric: l2
Initial update index: 800,000,000 vectors with external labels equal to A = P[0:800M]
Update order: update_order.u32, a seed-42 permutation of source IDs [0, 1B)

Traces

insert-20: starts from A, then inserts P[800M:1B] in twenty 10,000,000-vector batches.
delete-20: starts from the static 1B state, then deletes P[800M:1B] in twenty 10,000,000-vector batches.
mixed-replace-100: keeps 800M live vectors for 100 rounds; each round deletes a cyclic 10,000,000 source-ID slice and inserts a cyclic vector-ref slice. Insert external IDs use existing P[800M:1B] labels for the first 20 rounds, then new labels in [1,000,000,000, 1,800,000,000).

Batch JSON files use compact descriptors (range, u32_slice, and u32_cyclic_slice) instead of inline million-ID arrays.

Ground Truth

Checkpoint ground truth is produced by filtering the static source ground truth in source-distance order through the checkpoint owner map. Files are exact top-10 only when every query retains at least 10 active candidates from the static source GT depth. If a checkpoint cannot provide top-10 for every query, the package writes a matching .invalid.json marker instead of padding.

Files

workload.json: workload contract.
static-workload-reference.json: immutable static-search-eval references.
source_manifest.json: generation manifest.
update_order.u32: seed-42 source-ID permutation.
initial/index_800m_m32_efc500: HNSW index built from base[A] with labels A.
groundtruth/active_800m.bin: initial 800M checkpoint GT, or active_800m.invalid.json.
traces/*/trace.json: trace metadata.
traces/*/batches/*.json: compact batch descriptors.
traces/*/groundtruth/*: checkpoint GT or invalid markers.
checksums.sha256: checksums for generated package files.

PQ artifacts from the static dataset are referenced but not reordered into this first package version.