Measurement-driven systems performance.

For people who read the disassembly. Storage, memory, kernel, compute — and the FPGAs that beat them.

→ weekly measurement posts → monthly deep dives → quarterly interactives
┌─[ featured ]── · 3m read · cache · cpu · memory ┐

A cache-line visualizer

An interactive that lets you feel cache-line behavior: array-of-structs vs struct-of-arrays, false sharing in action, 64-byte alignment, the padding trick — the visceral version of things every systems engineer has memorized.

# cache # false-sharing # visualization # interactive
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┌─[ recent posts ]─ ┐
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title
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2026-04-11
app · syscall
io_uring vs epoll vs blocking read on Linux 6.18 LTS — a fair benchmark
# io_uring # epoll # linux
3m
2026-04-11
app · cache
What HNSW actually does to your cache
# hnsw # vector-search # cache
3m
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3 posts across 10 layers · click any layer to see posts at that position in the stack · same ladder as the Stack Rail on post pages (SPEC §26)