Hardware researcher spins up 'CPU deoptimization' project to find the slowest single x86 instruction, creates hall of shame

tomshardware.com 2026-08-08 Jake Roach

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Technologies:x86 CPU PCIe MMIO SIMD AMX mov rdmsr fxrstor64 xrstore64

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CPU performance analysis x86 instruction set hardware optimization low-level instruction execution processor architecture software optimization computer architecture performance testing instruction latency hardware research open source project CPU deoptimization

News Summary

While the industry relentlessly pursues faster processors, hardware researcher Christopher Domas has taken a contrary approach with his 'CPU deoptimization' project, aiming to identify the slowest sin... Read original →

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