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Date: Fri, 8 May 2009 04:13:51 -0700
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From: pluknet <pluknet@gmail.com>
To: Scott Long <scottl@samsco.org>
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Cc: Ollivier Robert <roberto@keltia.freenix.fr>, freebsd-current@freebsd.org
Subject: Re: Hypertherading
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2009/5/7 Scott Long <scottl@samsco.org>:
> Ollivier Robert wrote:
>>
>> On 7/05/2009 10:17, Bob Bishop wrote:
>>>
>>> AFAICS the reference doesn't support that conclusion at all.
>>
>> Nehalem CPUs'HT feature is significantly different from the one present =
in
>> previous P4 CPUs. =A0Apparently, Nehalem's HT works. =A0Memory bandwidth=
 being
>> much higher helps too.
>>
>
> I keep here the anecdote that "it's better". =A0Is there a good reference
> somewhere that describes exactly how it works?
>
> Scott

Hi.

There is a number of synthetic, low-level, and h/level application
nehalem tests flowing around in Russian.
Also, not far ago (31.12.2008 18:09) Intel has published the Intel
Optimization Reference Manual for x32/64.
(see ch. 8). It might be useful.
http://download.intel.com/design/processor/manuals/248966.pdf.


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