redhat 7.3 an PE 2650 indicate 4 Processors instead 2
jfhall8 at swbell.net
Wed Dec 18 12:45:00 CST 2002
Hyperthreading can decrease performance if OS and Application are not
written for HT processors. I would not run HT on an OS that does not
explicitly support it.
"So here I go, it's my shot
Feet fail me not
This may be the only opportunity I got"
From: linux-poweredge-admin at dell.com
[mailto:linux-poweredge-admin at dell.com] On Behalf Of jason andrade
Sent: Wednesday, December 18, 2002 5:16 AM
Cc: Amit_Bhutani at dell.com; linux-poweredge at dell.com
Subject: Re: redhat 7.3 an PE 2650 indicate 4 Processors instead 2
On Wed, 18 Dec 2002, Shahram wrote:
> is this advantageous to run with Hyper-Threading on Redhat 7.3?
hyperthreading should give you an extra 25-40% of available cpu
on the application (multithreaded ? multiple applications?).
> is there any disadvantage known?
there hasn't been any feedback which talks about disadvantages at this
point but it is still a relatively new piece of technology in terms of
widespread deployment. i am sure they will crop up.
there have been a couple of reports of people solving some stability
issues by disabling hyperthreading but they have not been conclusive.
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