A Quick Run With The FSGSBASE Patches On Intel + AMD

FSGSBASE patches for the Linux kernel have been available for years albeit not mainlined to date. However, thankfully, a Microsoft Linux developer has taken up the cause to get them upstreamed given the performance benefits they are even seeing. Here are some benchmarks of the Linux kernel patches for FSGSBASE on both Intel and AMD CPUs.
The last time I benchmarked the FSGSBASE patches were last summer on Intel hardware and looking at the FSGSBASE patches at the time as well as the Linux kernel state at that point. For this round of testing is using the FSGSBASE v11 patches against the Linux 5.7 Git kernel as of last week while testing on both an Intel Core i9 and AMD Ryzen Threadripper systems for seeing the benefit of this instruction set extension when wired up into the Linux kernel.
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