Google Introduces Retpoline Off the back of the Spectre and Meltdown Vulnerability that has shaken the entire IT industry, it turns out an engineer over at Google has developed a solution called Retpoline
Created by a Google software engineer Paul Turner, The solution is “a novel software binary modification technique that prevents branch-target-injection”
Well... that explains it..!
In short, Retpoline resolves the performance hit the previous fix introduced. What's even better is Google has been able to push out this new fix to their cloud services and have noticed no performance issues on their Apps. So let's take this as good news, and a step in the right direction, as one of the things many were worried about was the performance hit the update would impose.