cpu scaling questions
Dave Jones
davej at redhat.com
Mon Oct 2 20:01:55 UTC 2006
On Mon, Oct 02, 2006 at 03:44:02PM -0400, Thomas J. Baker wrote:
> Just curious - it must also a bug that under FC5, with two hyperthreaded
> Xeon CPUs, all four logical processors scale independently?
Yes. They should scale in pairs. That is, if you're using a real
scaling driver, and not p4-clockmod. With p4-clockmod each
core is independant, because it's not really scaling, it's inserting
waitstates in each clock tick per 'thread'.
Dave
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http://www.codemonkey.org.uk
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