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20111031 - Exclusive Core Access
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+One of the top items on my OS feature wishlist: Exclusive CPU Core Access.
Concept Enables a full screen application like a game to have exclusive access to CPU cores. Removes preemption on those cores. One important step towards the path of solving the latency problem on non-console devices.
How to Implement The OS reuses it's CPU Hot-Plug functionality to migrate threads off the cores, then grants the application exclusive access. When the app is back-grounded or exits, the CPU cores are reclaimed.
Why Not? The modern OS deserves a redesign, the concept of sharing a single processor core is outdated as all devices are going to be many-core from now on. Can certainly have both hard real-time and time-sharing in the same OS on the same hardware.
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