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Date:      Mon, 22 May 2006 12:55:43 -0600
From:      "Chad Leigh -- Shire.Net LLC" <chad@shire.net>
To:        Eric Anderson <anderson@centtech.com>
Cc:        current@freebsd.org, m m <needacoder@gmail.com>
Subject:   Re: FreeBSD is now self-hosting on the UltraSPARC T1
Message-ID:  <F47557C7-388A-4577-A365-5F22AF4A049D@shire.net>
In-Reply-To: <4471E7FB.3090400@centtech.com>
References:  <1e4841eb0605211854i44c4aa4cm9dfc72506c2232ea@mail.gmail.com> <FB03D201-4154-411E-AFE4-572CEBF76A92@shire.net> <4471E7FB.3090400@centtech.com>

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On May 22, 2006, at 10:34 AM, Eric Anderson wrote:

> Chad Leigh -- Shire.Net LLC wrote:
>> On May 21, 2006, at 7:54 PM, m m wrote:
>>> While
>>> on topic, the Opterons aren't SMP either, and neither are the
>>> ht-Xeons...
>> I would like t\o hear the rational for the Opterons (presumably  
>> the dual core ones) not being SMP.  They have two independent  
>> operating cores in one physical package.  Who cares how it is  
>> packaged?  I would tend to agree with you on the ht-Xeon in terms  
>> of general descriptions.  I do not know as well how the ht-xeon  
>> work as I don't use any but it seems to me that the "SMP" moniker,  
>> at least in FreeBSD, relate to how things are scheduled.
>> Btw, Opteron MB with a single dual-core ship get a BIOS report on  
>> Boot of having 2 CPUs...
>
> Careful - two cores doesn't mean two caches, and isn't always just  
> 'two cores glued into one package'.
>

But on the Opteron, the subject of the discussion, it does.  They  
have two caches. The Intel Core Duo dies not.

Chad

> -------------------------------------------------------------------

---
Chad Leigh -- Shire.Net LLC
Your Web App and Email hosting provider
chad at shire.net






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