Mickey: The Performance Cost Of Spectre / Meltdown / Foreshadow Mitigations On Linux 4.19

This is for Intel Xeon and AMD Epyc machines:

https://www.phoronix.com/scan.php?page=article&item=linux-419-mitigations&num=1

That's where things stand today with the out-of-the-box performance cost of these CPU vulnerability mitigations with the Linux 4.19 kernel. Keep in mind if your system(s) are exposed to untrusted users/code, particularly in VMs, additional steps like l1tf=full may be needed where you may end up disabling SMT/HT or always enforce the L1 cache...
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The Performance Cost Of Spectre / Meltdown / Foreshadow Mitigations On Linux 4.19

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