#Simd
3 posts in tag “Simd”.
CPU Microarchitecture: Pipelines, Out-of-Order Execution, and Modern Performance
2025-12-04An in-depth exploration of CPU microarchitecture: instruction pipelines, hazards, branch prediction, out-of-order execution, register renaming, superscalar and SIMD units, and how software maps to hardware for performance.
Columnar Storage: Parquet Encoding, ORC Stripe Format, Apache Arrow In-Memory Columnar Format, Predicate Pushdown, and SIMD Scans
2021-07-03A deep exploration of columnar data formats — how Parquet and ORC organize data column-by-column for efficient analytics, Apache Arrow's in-memory representation for zero-copy data interchange, and the vectorized execution that makes modern query engines fast.
Cache‑Friendly Data Layouts: AoS vs. SoA (and the Hybrid In‑Between)
2021-03-18How memory layout choices shape the performance of your hot loops. A practical guide to arrays‑of‑structs, struct‑of‑arrays, and hybrid layouts across CPUs and GPUs.