https://sudonull.com/linux-7-0-regression-postgresql-arm64
Amazon developer found PostgreSQL performance drop by 2x on Linux 7.0 due to PREEMPT_LAZY. Analysis, fixes with rseq and Zijlstra's position. Test on ARM64.
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https://sudonull.com/rag-optimization-for-legal-tasks
Learn how hybrid RAG with semantic chunking and grounding improved metrics by 2x in Agentic RAG Legal Challenge. Benchmarks, pipelines and lessons for developers.
https://sudonull.com/sdxs-1b-compact-diffusion-for-gpu
Breaking down the SDXS-1B architecture: UNet 1.6B, Qwen3.5, asymmetric VAE with 2x upscaler. Metrics, training, code. Master image generation on your own GPUs — download the model.
https://sudonull.com/searchvalues-and-frozencollections-in-net-8-for-optimization
Learn how SearchValues and FrozenCollections speed up search in .NET 8 hot paths. Benchmarks: 13x on strings, 2x on dictionaries. Instructions for developers with code examples.
https://sudonull.com/agi-cpu-arm-136-cores-for-ai-data-centers
Arm has released AGI CPU on 3 nm with 136 Neoverse V3 cores for orchestrating AI agents. Density up to 45,000 cores/rack, 2x perf over x86. Architecture and benchmark details for developers.
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