From owner-freebsd-questions@FreeBSD.ORG  Sat Oct 30 14:32:11 2004
Return-Path: <owner-freebsd-questions@FreeBSD.ORG>
Delivered-To: freebsd-questions@freebsd.org
Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125])
	by hub.freebsd.org (Postfix) with ESMTP id A10F316A4CE
	for <freebsd-questions@freebsd.org>;
	Sat, 30 Oct 2004 14:32:11 +0000 (GMT)
Received: from srvdmz13.oekb.co.at (srvdmz13.oekb.co.at [143.245.5.103])
	by mx1.FreeBSD.org (Postfix) with ESMTP id 3BBB143D3F
	for <freebsd-questions@freebsd.org>;
	Sat, 30 Oct 2004 14:32:10 +0000 (GMT)
	(envelope-from Ewald.Jenisch@oekb.at)
Received: from Unknown [143.245.2.191] by srvdmz13.oekb.co.at - SurfControl
	E-mail Filter (4.7); Sat, 30 Oct 2004 16:32:08 +0200
Received: from athena.oekb.co.at ([143.245.83.20]) by MAIL01.oekb.co.at with
	Microsoft SMTPSVC(5.0.2195.6713);	 Sat, 30 Oct 2004 16:32:07 +0200
Received: from athena.oekb.co.at (athena.oekb.co.at [127.0.0.1])
	by athena.oekb.co.at (8.12.10/8.12.10) with ESMTP id i9UEWHwo009927
	for <freebsd-questions@freebsd.org>; Sat, 30 Oct 2004 16:32:17 +0200
Received: (from ej@localhost)
	by athena.oekb.co.at (8.12.10/8.12.10/Submit) id i9UEWHFw009926
	for freebsd-questions@freebsd.org; Sat, 30 Oct 2004 16:32:17 +0200
Message-ID: <20041030143217.GA9742@athena.oekb.co.at>
From: Ewald Jenisch <a@jenisch.at>
To: freebsd-questions@freebsd.org
Date: Sat, 30 Oct 2004 16:32:17 +0200
MIME-Version: 1.0
Content-Type: text/plain; charset=us-ascii
Content-Disposition: inline
X-OriginalArrivalTime: 30 Oct 2004 14:32:07.0495 (UTC)
	FILETIME=[3BBA5570:01C4BE8D]
User-Agent: Mutt/1.4.1i
Subject: SMP with hyperthreading CPU (5.3)?
X-BeenThere: freebsd-questions@freebsd.org
X-Mailman-Version: 2.1.1
Precedence: list
List-Id: User questions <freebsd-questions.freebsd.org>
List-Unsubscribe: <http://lists.freebsd.org/mailman/listinfo/freebsd-questions>,
	<mailto:freebsd-questions-request@freebsd.org?subject=unsubscribe>
List-Archive: <http://lists.freebsd.org/pipermail/freebsd-questions>
List-Post: <mailto:freebsd-questions@freebsd.org>
List-Help: <mailto:freebsd-questions-request@freebsd.org?subject=help>
List-Subscribe: <http://lists.freebsd.org/mailman/listinfo/freebsd-questions>,
	<mailto:freebsd-questions-request@freebsd.org?subject=subscribe>
X-List-Received-Date: Sat, 30 Oct 2004 14:32:11 -0000

Hi,

I've got a 3GHz P4 system with hyperthreading enabled in the BIOS. For
this system I've built a SMP-kernel (kernel config-file "SMP" that
comes with 5.3).

However SMP doesn't seem to be enabled - at least I don't seen the
usual messages like "CPU ... launched" that's common with SMP
configurations.

The only thing I'm seeing are the following entries during boot:

CPU: Intel(R) Pentium(R) 4 CPU 3.00GHz (2992.71-MHz 686-class CPU)
  Origin = "GenuineIntel"  Id = 0xf34  Stepping = 4
  Features=0xbfebfbff<FPU,VME,DE,PSE,TSC,MSR,PAE,MCE,CX8,APIC,SEP,MTRR,PGE,MCA,C
MOV,PAT,PSE36,CLFLUSH,DTS,ACPI,MMX,FXSR,SSE,SSE2,SS,HTT,TM,PBE>
  Hyperthreading: 2 logical CPUs


Neither does "top" show anything about a second (logical) cpu being
active, nor does ps.

So do I have two logical CPUs active on this system?

If not - what should I do besides enabling "SMP" in the kernel config
file (sure enough "cpu I386_CPU" which effectively disables SMP is
commented out)

Thanks much in advance for any hints,
-ewald