- Aug 26, 2010
A fundamental design flaw in Intel's processor chips has forced a significant redesign of the Linux and Windows kernels to defang the chip-level security bug.
https://www.theregister.co.uk/2018/01/02/intel_cpu_design_flaw/Crucially, these updates to both Linux and Windows will incur a performance hit on Intel products. The effects are still being benchmarked, however we're looking at a ballpark figure of five to 30 per cent slow down, depending on the task and the processor model. More recent Intel chips have features – such as PCID – to reduce the performance hit. Your mileage may vary.
I regularly run processes that take well over 48 hours to complete. A 30% slowdown there would be somewhat noticeable. 5% I can live with.