The Combined Impact Of Retpoline + KPTI On Ubuntu Linux

Over the past week I have posted many KPTI and Retpoline benchmarks for showing the performance impact of these patches to combat the Spectre and Meltdown vulnerabilities. But with my testing so far I haven't done any showing the combined impact of KPTI+Retpoline on Ubuntu versus a completely unpatched system. Here are some of those results...