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SubjectRe: RT and XFS
On Fri, Jul 15, 2005 at 09:16:55AM -0700, Daniel Walker wrote:
> I don't agree with that. But of course I'm always speaking from a real
> time perspective . PI is expensive , but it won't always be. However, no
> one is forcing PI on anyone, even if I think it's good ..

It depends on what kind of PI under specific circumstances. In the general
kernel, it's really to be avoided at all costs since it's masking a general
contention problem at those places. In a formally provable worst case system
using priority ceiling emulation and stuff, PI really valuable. How a system
like the Linux kernel fits into that is a totally different story. General
purpose kernels using general purpose facilities don't.

That's how I see it.


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