Hilbert over at guru3d posted a cool tool that will show if your system is all patched up from the Bios and OS perspective. The author is Steve Gibson from Gibson security research. The tool has a toggle on and off button if you were interested in before and after performance impact from the security patches. Here is the page http://www.guru3d.com/news-story/download-inspectre-meltdown-and-spectre-check-tool.html