I'm not entirely sure, it looks like for Skylake CPUs the L3 cache is no longer inclusive but instead acts as an extension of the per core L2 cache. https://ww

I'm not entirely sure, it looks like for Skylake CPUs the L3 cache is no longer inclusive but instead acts as an extension of the per core L2 cache. https://www.anandtech.com/show/11550/the-intel-skylakex-review-core-i9-7900x-i7-7820x-and-i7-7800x-tested/4 https://www.anandtech.com/show/11550/the-intel-skylakex-revi... I remember a while ago reading about storing your encryption keys in L2 instead of ram and deliberate "abuse" of the L3 cache on VPS hosts however can't find that article and haven't kept up with the news on it. Given that the intel cpu patches have reduced CPU performance by ~15% ( again sorry don't have the exact source) I'd say there has been quite significant changes in cache management in the name of security.