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SubjectRe: [RFC] generalise scheduling classes


bill davidsen wrote:

>In article <3FC0A0C2.90800@cyberone.com.au>,
>Nick Piggin <piggin@cyberone.com.au> wrote:
>
>| We still don't have an HT aware scheduler, which is unfortunate because
>| weird stuff like that looks like it will only become more common in future.
>
>The idea is hardly new, in the late 60's GE (still a mainframe vendor at
>that time) was looking at two execution units on a single memory path.
>They decided it would have problems with memory bandwidth, what else is
>new?
>

I don't think I said new, but I guess they (SMT, NUMA, CMP) are newish
for architectures supported by Linux Kernel. OK NUMA has been around for
a while, but the scheduler apparently doesn't work so well for atypical
new NUMAs like Opteron.


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