Update: I included the results for when PCID is disabled, for comparison, as a worse case scenario. After learning about Meltdown and Spectre, I waited patiently to get a fix from my OS vendor. However, there were several reports of
Finding out the MySQL performance regression due to kernel mitigation for Meltdown CPU vulnerability
![Finding out the MySQL performance regression due to kernel mitigation for Meltdown CPU vulnerability Meltdown logo as a shield melting down](https://jynus.com/dbahire/wp-content/uploads/2018/01/meltdown-text-750x350.png)