[Vserver] vsched and multi-CPU

From: Mehdi Bennani <joeytriviano_at_gmail.com>
Date: Tue 30 May 2006 - 15:12:55 BST
Message-ID: <4a1c34ee0605300712ub533657l7a0c0c4fee6dab6a@mail.gmail.com>

Hello,

I've read the pages about vsched on

http://linux-vserver.org/vsched+explained:
http://linux-vserver.org/Scheduler+Parameters

I'm trying to figure out how vserver deals with multi-processor
systems and systems with hyperthreaded processors (detected as
bi-processor).

and I would like an explanation about something that seems ambigous to me:

--Both pages seem to say that (fill-rate) / (interval) is the
proportion for ONE processor in the system. But a sentence in
http://linux-vserver.org/vsched+explained...:

"So, if you have four CPUs and you want one context to get an average
of one whole CPU to itself, then you'd set fill-rate to 1 and interval
to 4."

... is not clear... does it mean that (fill-rate) / (interval) is the
proportion for the FOUR CPU's?

Where is the truth?

--Is a processor with Hyperthreading counted as two processors by vserver?

Thanks,

Mehdi Bennani
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Received on Tue May 30 15:13:39 2006

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