AI RESEARCH
Single-Thread JPEG Decoder Benchmarks Mis-Evaluate ML Data Loaders
arXiv CS.LG
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ArXi:2605.08731v1 Announce Type: cross JPEG decode is routine ML infrastructure, but Python decoder choices are often justified by single-process, single-thread microbenchmarks. We audit this evaluation assumption with twelve Python-accessible JPEG decode paths on five matched 16 vCPU Google Cloud CPUs: Intel Emerald Rapids, AMD Zen 4, AMD Zen 5, ARM Neoverse V2, and ARM Neoverse N1.