Re: Box restarting with Windows XP & Hyperthreading

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From: V Green (vanceg_at_nowhere.net)
Date: 08/22/04 

Date: Sat, 21 Aug 2004 22:56:20 -0700

Hey Nathan-

Do you have some info on improvements to HT
in XP2 that aren't covered in MSKB 811113?

The stuff I see there isn't very dramatic...

Just wondering.

-v

"Nathan McNulty" <nospam@msn.com> wrote in message
news:u$h1%23dAiEHA.356@tk2msftngp13.phx.gbl...
> You make a very good point. I would like to show you a comparison of HT
> when it first came out to HT more recently. More recent programs have
> been better compiled and more and more are supporting HT. See the
> differences between these two:
> Old - http://www.2cpu.com/articles/43_1.html
> New - http://www.2cpu.com/articles/42_1.html
>
> As for the fix, try installing Service Pack 2. When this is finished and
> has rebooted, turn off the computer. Turn on the computer, then enter
> the BIOS, enable HyperThreading, then let Windows load. It should have
> no problems after this point.
>
> ----
> Nathan McNulty
>
>
> Nospam wrote:
> > NoNoBadDog,
> >
> > You are correct to a certain extent as the benefits of hyperthreading
will
> > depend upon what the user is doing. However, software will be complied
more
> > so in the future to accomodate hyper-threading. I definitely notice the
> > difference on my PC since I have several apps running at the same time,
some
> > active, some in the background. Tom's Hardware Guide is a respected
website
> > with factual information. This link
> > http://www6.tomshardware.com/cpu/20021227/ has a good article on
> > Hyperthreading.
> >
> > Nospam
> >
> > "NoNoBadDog!" <mypants_bjsledgeATpixi.com> wrote in message
> > news:eKjgE8whEHA.3928@TK2MSFTNGP11.phx.gbl...
> >
> >>As a side note;
> >>
> >> Unless you are using software that is HT "aware" (Photoshop being one
of
> >>the FEW programs that are HT "Aware"), you will take a performance hit
by
> >>having HT enabled. This has to do with the way that the OS and the proc
> >>handle long-chain branching predictions and also with the way that
> >>signaling is handled on the extra pipelines. Typical performance hit is
> >>somewhere in the range of 7% (slower), but there have been recorded
> >>instances of up to 17% (on Intel 2.8 HT P4s). In most cases, it is
better
> >>to leave HT off. HT is nothing more than a marketing tool for Intel,
and
> >>it really does not benefit the average user. The techs actually did you
a
> >>favor by turning it off. Before you lamers and flamers start
responding,
> >>be aware that I also own a HT based system, and I leave the HT off. I
> >>also own AMD based systems. and both are very worthy systems. I am not
> >>"Intel bashing". No need to respond if I have hurt anyone's delicate
> >>"Intel Rocks" feelings.
> >>
> >>Bobby
> >>
> >>"Cari (MS MVP)" <Newsgroups1@coribright.com> wrote in message
> >>news:%23pQRn0whEHA.1656@TK2MSFTNGP09.phx.gbl...
> >>
> >>>Did you contact the manufacturer of the PC?
> >>>--
> >>>Cari (MS-MVP Windows Client - Printing, Imaging & Hardware)
> >>>www.coribright.com
> >>>
> >>>"Kirk" <stormstaff@sbcglobal.net> wrote in message
> >>>news:a5fc01c48709$cdf64220$a601280a@phx.gbl...
> >>>
> >>>>My comp started rebooting all of a sudden. No viruses were
> >>>>found, so I took it into the local shop. They told me
> >>>>there is a known issue with Windows XP & Intel's
> >>>>Hyperthreading.
> >>>>
> >>>>They turned off the HT and everything is fine. They said I
> >>>>needed to contact Microsoft for a patch. I can't find it
> >>>>on the site. I called support and they don't wanna help me
> >>>>because it's an OEM version.
> >>>>
> >>>>I just want to be able to run my HT & XP together. Can
> >>>>anyone help me please?
> >>>
> >>>
> >>
> >
> >