> > It will have about the same overhead as running a RTLinux kernel only that
> > better latency is also available to user space.
>
> Nope, you need a lot more locks in kernel structures (all spin_lock which
> are noop ATM on UP will cost you)
1. Most of the time irq save spinlocks are used, these are not cheap under
RTLinux as well.
2. Since ages I have some atomic macros pending, that could make a few
spinlocks obsolete.
bye, Roman
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