In <[email protected]>, on 11/01/2013
at 11:20 AM, John Eells <[email protected]> said:
>I am reliably told that there are in fact *two* MP effect curves.
>There is indeed a machine-level curve that reduces the capacity of
>the overall machine when an engine is added (or activated) to a CEC.
>I have not seen the numbers but I'm told this particular MP effect,
>which has to do with things related to shared hardware
>infrastructure within the machine, while nonzero, is relatively
>small in the grand scheme of things.
>Then there's the single-LPAR, i.e., single-operating system MP
>effect. This MP effect is far more pronounced than the one above,
>and it's the one I had always heard people talk about (up until
>today, that is).
Yes, if every CP is dedicated. But isn't there a third MP effect when
you share a processor across LPAR's?
--
Shmuel (Seymour J.) Metz, SysProg and JOAT
ISO position; see <http://patriot.net/~shmuel/resume/brief.html>
We don't care. We don't have to care, we're Congress.
(S877: The Shut up and Eat Your spam act of 2003)
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