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feat(milvus): add nprobe parameter for SCANN index #686

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Merged
chasingegg merged 1 commit into from
Dec 24, 2025
Merged

feat(milvus): add nprobe parameter for SCANN index #686

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6 changes: 5 additions & 1 deletion vectordb_bench/backend/clients/milvus/config.py
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Original file line number Diff line number Diff line change
Expand Up @@ -417,6 +417,7 @@ def search_param(self) -> dict:
class SCANNConfig(MilvusIndexConfig, DBCaseConfig):
nlist: int = 1024
with_raw_data: bool = False
nprobe: int = 64
reorder_k: int | None = 100
index: IndexType = IndexType.SCANN_MILVUS

Expand All @@ -433,7 +434,10 @@ def index_param(self) -> dict:
def search_param(self) -> dict:
return {
"metric_type": self.parse_metric(),
"params": {"reorder_k": self.reorder_k},
"params": {
"nprobe": self.nprobe,
"reorder_k": self.reorder_k,
},
}


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1 change: 1 addition & 0 deletions vectordb_bench/frontend/config/dbCaseConfigs.py
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Expand Up @@ -1056,6 +1056,7 @@ class CaseConfigInput(BaseModel):
IndexType.IVFPQ.value,
IndexType.IVFSQ8.value,
IndexType.IVF_RABITQ.value,
IndexType.SCANN_MILVUS.value,
IndexType.GPU_IVF_FLAT.value,
IndexType.GPU_IVF_PQ.value,
IndexType.GPU_BRUTE_FORCE.value,
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