performance on Margin Noteshttps://www.191196.xyz/tags/performance/Recent content in performance on Margin NotesHugoen-USFri, 30 Oct 2026 09:26:00 +0000Three papers I keep re-reading about inference costhttps://www.191196.xyz/posts/inference-papers/Fri, 30 Oct 2026 09:26:00 +0000https://www.191196.xyz/posts/inference-papers/Paged attention, speculative decoding, and 4-bit weights — what each one actually buys.When a Postgres index made the query slowerhttps://www.191196.xyz/posts/postgres-index/Sat, 12 Apr 2025 19:05:00 +0000https://www.191196.xyz/posts/postgres-index/A composite index looked like the obvious fix. It made p99 four times worse for a week before I noticed.