cpu-optimization

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This article explores optimizing prefix sum (scan) operations on ARM NEON SIMD instructions, demonstrating how to process multiple integer values in parallel using vector operations and interleaved load/store techniques to achieve speeds up to tens of gigabytes per second compared to scalar loop approaches.

Daniel Lemire ARM NEON
lemire.me · mfiguiere · 6 days ago · details · hn
0 4/10

Benchmark comparison of vector search performance across MariaDB 11.8, MariaDB 12.3, and Postgres 18.2 with pgvector, showing MariaDB 12.3 achieves superior recall/precision and lower CPU usage per query on datasets ranging from 100k to 1M vectors.

MariaDB MariaDB 11.8.5 MariaDB 12.3.0 Postgres 18.2 pgvector 0.8.1 Small Datum LLC MariaDB Foundation Mark Callaghan Hetzner ax162-s
smalldatum.blogspot.com · gslin · 7 days ago · details · hn