Re: Should Fedora switch to full kernel preemption (CONFIG_PREEMPT=y)?

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On Thu, Jul 20, 2023, at 9:53 AM, Daniel P. Berrangé wrote:

> What's the downside from full pre-empt that makes it inappropriate
> as the defualt for Fedora server spins too ? Is it that it is
> trading off overall peak performance in favour of reduced latency,
> and we think servers would prefer the peak performance in general ?

Maybe. But I'm not aware of any recent data one way or the other, certainly nothing Fedora specific.

I don't expect full preemption will impact servers in any meaningful way. I just can't prove that.



-- 
Chris Murphy
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