Messages in this thread |  | | Date | Thu, 3 Jan 2019 15:40:29 -0800 | From | Andi Kleen <> | Subject | Re: [RFC v2 1/6] x86: introduce kernel restartable sequence |
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> Thanks for the explanations. I don’t think it would work (e.g., IRQs). I can > avoid generalizing and just detect the "magic sequence” of the code, but let > me give it some more thought.
If you ask me I would just use compiler profile feedback or autofdo (if your compiler has a working version)
The compiler can do a much better job at optimizing this than you ever could.
Manual FDO needs some kernel patching though.
-Andi
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