From owner-freebsd-current@FreeBSD.ORG Fri Oct 22 15:33:58 2004 Return-Path: Delivered-To: freebsd-current@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id 1CD7C16A4CE for ; Fri, 22 Oct 2004 15:33:58 +0000 (GMT) Received: from avscan1.sentex.ca (avscan1.sentex.ca [199.212.134.11]) by mx1.FreeBSD.org (Postfix) with ESMTP id C5C4043D3F for ; Fri, 22 Oct 2004 15:33:57 +0000 (GMT) (envelope-from mike@sentex.net) Received: from localhost (localhost.sentex.ca [127.0.0.1]) by avscan1.sentex.ca (8.12.11/8.12.11) with ESMTP id i9MFXvtd046554 for ; Fri, 22 Oct 2004 11:33:57 -0400 (EDT) (envelope-from mike@sentex.net) Received: from avscan1.sentex.ca ([127.0.0.1]) by localhost (avscan1.sentex.ca [127.0.0.1]) (amavisd-new, port 10024) with LMTP id 46205-05 for ; Fri, 22 Oct 2004 11:33:56 -0400 (EDT) Received: from lava.sentex.ca (pyroxene.sentex.ca [199.212.134.18]) by avscan1.sentex.ca (8.12.11/8.12.11) with ESMTP id i9MFXupU046522 for ; Fri, 22 Oct 2004 11:33:56 -0400 (EDT) (envelope-from mike@sentex.net) Received: from simian.sentex.net (simeon.sentex.ca [192.168.43.27]) by lava.sentex.ca (8.12.11/8.12.11) with ESMTP id i9MFXmX4079355 for ; Fri, 22 Oct 2004 11:33:49 -0400 (EDT) (envelope-from mike@sentex.net) Message-Id: <6.1.2.0.0.20041022113405.08fe2c48@64.7.153.2> X-Sender: mdtpop@64.7.153.2 (Unverified) X-Mailer: QUALCOMM Windows Eudora Version 6.1.2.0 Date: Fri, 22 Oct 2004 11:40:44 -0400 To: freebsd-current@freebsd.org From: Mike Tancsa Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii"; format=flowed X-Virus-Scanned: by amavisd-new X-Virus-Scanned: by amavisd-new at avscan1b Subject: device apic on a single processor machine X-BeenThere: freebsd-current@freebsd.org X-Mailman-Version: 2.1.1 Precedence: list List-Id: Discussions about the use of FreeBSD-current List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 22 Oct 2004 15:33:58 -0000 When moving from RELENG_4 to RELENG_5, I noticed that in GENERIC, the options options SMP # Symmetric MultiProcessor Kernel device apic # I/O APIC are enabled by default. Going forward, is this the best thing to leave in my default kernel on a uniprocessor machine ? I am not using the ULE scheduler either and have hyperthreading disabled in the BIOS. I did a search on google, and in 2003 it was said not to having either on a single processor machine but its not clear if this is no longer the case. ---Mike -------------------------------------------------------------------- Mike Tancsa, tel +1 519 651 3400 Sentex Communications, mike@sentex.net Providing Internet since 1994 www.sentex.net Cambridge, Ontario Canada www.sentex.net/mike