advisedy commented on code in PR #3562:
URL: https://github.com/apache/kvrocks/pull/3562#discussion_r3639737675
##########
src/search/hnsw_indexer.cc:
##########
@@ -173,14 +172,15 @@ StatusOr<double> ComputeSimilarity(const VectorItem&
left, const VectorItem& rig
}
HnswIndex::HnswIndex(const SearchKey& search_key, HnswVectorFieldMetadata*
vector, engine::Storage* storage,
- std::random_device::result_type seed)
+ std::optional<std::random_device::result_type> seed)
: search_key(search_key),
metadata(vector),
storage(storage),
- generator(std::mt19937(seed)),
+ seed(seed),
m_level_normalization_factor(1.0 / std::log(metadata->m)) {}
uint16_t HnswIndex::RandomizeLayer() {
+ static thread_local std::mt19937 generator = [this] { return
std::mt19937(seed.value_or(std::random_device()())); }();
Review Comment:
I’m very sorry that I relied too much on AI when replying, but my genuine
intention was to contribute. I’m truly sorry.
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