Attila Nagy wrote:
Hello,
On 05/05/06 06:44, Scott Long wrote:
CPU1 is being treated as a hyperthreading core instead of a real core,
and is being disabled per our policy on Intel hyperthreading. By
'disabled' I mean that it is started, but it is being excluded from
scheduling decisions, and thus is only running its idle proc. It's
also handling any interrupts that come to it, such as timer and IPI
interrupts, so it's at 99% instead of 100% for the idle proc. There
is nothing broken about the number you are seeing, your system is
just running under a scheduling policy that it should not be.
This should have been fixed a week or so ago by a commit to HEAD,
RELENG_6, and RELENG_6_1 by Colin Percival. How old is kernel?
Isn't this fixed by jkim's commit?
I don't have any Core Duos here, but on a Xeon LV (Sossaman) with
CURRENT, everything is OK:
http://www.freebsd.org/cgi/query-pr.cgi?pr=96203
BTW, just set machdep.hyperthreading_allowed=1 until the fix arrives.
I can confirm now that it is fixed in todays 6-STABLE.
Thanks everyone!
Eric
--
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Eric Anderson Sr. Systems Administrator Centaur Technology
Anything that works is better than anything that doesn't.
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