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Does Ubuntu Core's kernel support (hard) real-time?

If not, is it using a standard kernel, which can be patched with the CONFIG_PREEMPT_RT set?

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    You can always check alternative kernels before trying to compile one yourself. Please look at Liquorix here: liquorix.net/#features , one of the features there is "Hard Kernel Preemption: Most aggressive kernel preemption before requiring real-time patches. Guarantees responsive system under high intensity mixed workload scenarios." – Michal Przybylowicz May 9 '17 at 20:03

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