CPU cache have gotten larger. For example, Latest epyc CPU have 768MB of L3 cache. You can run Linux entirely on L3 memory... https://www.amd.com/en/press-rele

CPU cache have gotten larger. For example, Latest epyc CPU have 768MB of L3 cache. You can run Linux entirely on L3 memory... https://www.amd.com/en/press-releases/2022-03-21-3rd-gen-amd-epyc-processors-amd-3d-v-cache-technology-deliver-outstanding https://www.amd.com/en/press-releases/2022-03-21-3rd-gen-amd...