Tech article
Querying 3B Vectors
Community description: 17 points · 0 comments on Hacker News
Hacker News | Mar 3, 2026 | surprisetalk
Automated excerpt
Recently, I got nerd-sniped by this exchange between Jeff Dean and someone trying to query 3 billion vectors. This took 12 seconds. 2025-12-13 19:39:43. 830 | INFO | __main__:generate_random_vectors:12 - Generating 3000000 vectors... 2025-12-13 19:39:57. 509 | INFO | __main__:generate_random_vectors:12 - Generating 1000 vectors... We could also reduce even further by converting the data to float32:doc_vectors = generate_random_vectors(total_vectors_num). astype(np. float32) 2025-12-13 18:13:52. 152 | INFO | __main__:generate_random_vectors:10 - Generating 3000 vectors... 2025-12-13 18:13:52. 168 | INFO | __main__:generate_random_vectors:10 - Generating 1000 vectors...
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