What is linear memory access?

Sequential reads from contiguous blocks, key for cache prefetch and bandwidth.

Is 128 kB enough for machine learning workloads?

Mostly yes — tests show inference and training kernels peak early; batch small for gains.

Use tools like perf record -e mem_loads or the author's framework; profile window sizes up to 256 kB. Word count: ~1050.

🛠️ Developer Tools

We've all heard 'keep data contiguous' for speed. But what if 128 kB is all you need? One dev's deep experiments upend the advice.

theAIcatchup Apr 10, 2026 4 min read

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Community-driven. Code-first.

#GPU performance #cache optimization #cache performance #linear memory access #memory bandwidth #memory optimization #memory performance #performance-tuning #programming benchmarks

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Originally reported by Reddit r/programming