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From: FD Cami <stilgar2k@wanadoo.fr>
To: mcuss@cdlsystems.com
Cc: linux-kernel@vger.kernel.org
Subject: Re: Kernel reports 4 CPUS instead of 2...
Date: Wed, 16 Oct 2002 19:44:44 +0200	[thread overview]
Message-ID: <3DADA58C.2020009@wanadoo.fr> (raw)
In-Reply-To: 077901c27538$ef71b4a0$2c0e10ac@frinkiac7

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Mark Cuss wrote:
| Hello all
|
| I'm working with a new Dell Poweredge 4600 Server with Dual CPUs.
However,
| Linux reports that it sees 4 CPUs...  I have opened the thing to see
if Dell
| gave me 2 extras for free, but no luck:  Attached is /proc/cpuinfo.
|
| I've tried the RedHat 8.0 stock kernel, as well as a freshly compiled
2.4.19
| but both exhibit the same behavior.
|
| The specifics on the machine:
|
| Dual Xeon 2.2 GHz CPUs (512 k L2 cache)
| 2 Gigs DDR RAM
| The chipset is a ServerWorks CMIC-HE (see attached lspci for complete
| listing).
|
| Has anyone else seen this behavior?  The only other SMP machine I have
is an
| older Dell server with Dual 1 GHz coppermines, and it reports 2 CPUs...
|
| Any information or advice is greatly appreciated...
|
| Thanks in Advance,
|
| Mark

What you're seeing there is HyperThreading in action...

|
| Mark Cuss
| Real Time Systems Analyst
| CDL Systems Ltd.
| Suite 230
| 3553 - 31 Street NW
| Calgary, Alberta
| T2L 2K7
|
| Phone (403) 289-1733 extension 226
| Email:  mcuss@cdlsystems.com
| URL: www.cdlsystems.com


- --

F. CAMI
- ----------------------------------------------------------
~ "To disable the Internet to save EMI and Disney is the
moral equivalent of burning down the library of Alexandria
to ensure the livelihood of monastic scribes."
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  parent reply	other threads:[~2002-10-16 17:21 UTC|newest]

Thread overview: 23+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2002-10-16 17:24 Kernel reports 4 CPUS instead of 2 Mark Cuss
2002-10-16 17:35 ` Richard B. Johnson
2002-10-16 17:56   ` Samuel Flory
2002-10-16 17:54     ` Richard B. Johnson
2002-10-16 18:14       ` Samuel Flory
2002-10-16 19:28       ` James Cleverdon
2002-10-16 19:44         ` Mark Cuss
2002-10-16 20:10           ` Richard B. Johnson
2002-10-16 20:47           ` Samuel Flory
2002-10-16 21:44             ` Mark Mielke
2002-10-16 22:14               ` Samuel Flory
2002-10-16 22:21             ` Mark Cuss
2002-10-16 18:37     ` Mark Cuss
2002-10-16 23:21   ` Bryan Whitehead
2002-10-17  0:34     ` Mark Chernault
2002-10-17 12:56     ` Richard B. Johnson
2002-10-17 14:19       ` Dave Jones
2002-10-17 17:15       ` Bryan B Whitehead
2002-10-16 17:37 ` Joel Jaeggli
2002-10-16 17:48   ` Mark Cuss
2002-10-16 17:44 ` FD Cami [this message]
  -- strict thread matches above, loose matches on Subject: below --
2002-10-16 18:08 Nakajima, Jun
2002-10-17  1:02 Matt_Domsch

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