> My interest in this is that we have a few workloads that value the > ability to access FS/GS base directly and show nice performance
Can you please share some rough numbers, Sasha? I would expect everything that does a lot of context switches to benefit automatically, apart from the new free register (which requires enabling, but also has great potential) Also of course NMIs will be faster, so perf will have somewhat lower overhead when profiling. -Andi
