Food for Bot2026-05-26T00:00:00Zhttps://ender672.github.io/Tim ElliottTracing libjxl decoding patterns, with JPEG XL as the trace data container2026-05-26T00:00:00Zhttps://ender672.github.io/posts/2026-05-26-tracing-libjxl-decoding-patterns/Visualizing the spatial order in which libjxl decodes strips across 1–16 threads, with the trace data itself stored in a JPEG XL container.Packing Revisions Small and Reading them Fast2026-03-20T00:00:00Zhttps://ender672.github.io/posts/2026-03-26-revision-storage-benchmarks/A benchmark of revision storage strategies, delta encoders, and compressors.An Ode to Merge Join2026-02-10T00:00:00Zhttps://ender672.github.io/posts/2026-02-10-merge-join/How the merge join algorithm syncs millions of rows in constant memory using two sorted inputs and 25 lines of Python.