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Tagged articles

data locality

3 articles · Page 1 of 1
IT Learning Made Simple
IT Learning Made Simple
Aug 26, 2026 · Fundamentals

Why Does Cache Hit Rate Make Programs Sometimes Fast and Sometimes Slow?

The article explains how cache hit rate directly impacts program speed, describes the three hit‑rate levels, factors such as data locality, working‑set size and associativity, types of cache misses, and provides practical techniques—data alignment, array traversal, packing, prefetching, and monitoring tools—to improve performance.

C++Performance Optimizationcache
0 likes · 11 min read
Why Does Cache Hit Rate Make Programs Sometimes Fast and Sometimes Slow?
FunTester
FunTester
Jan 20, 2026 · Fundamentals

Why Data Movement, Not CPU Speed, Is the Real Performance Bottleneck

Most engineers blame slow CPUs for performance issues, but the true bottleneck is often data latency—from registers and caches to DRAM, NUMA nodes, disks, and networks—so understanding and minimizing data movement is key to reducing tail latency and improving system performance.

NUMASystemsdata locality
0 likes · 11 min read
Why Data Movement, Not CPU Speed, Is the Real Performance Bottleneck
Sohu Tech Products
Sohu Tech Products
Dec 13, 2023 · Big Data

Alluxio Edge: Edge Caching Solution for Trino and PrestoDB

Alluxio Edge is a library that runs inside Trino or PrestoDB workers, using local SSD or memory to cache data from cloud storage, which restores data locality, cuts storage egress, and delivers up to ten‑fold IO speed gains and up to ten‑fold query performance improvements in real deployments.

Alluxio EdgePrestoDBbig data
0 likes · 14 min read
Alluxio Edge: Edge Caching Solution for Trino and PrestoDB