Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S261613AbVEANnX (ORCPT ); Sun, 1 May 2005 09:43:23 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S261611AbVEANnW (ORCPT ); Sun, 1 May 2005 09:43:22 -0400 Received: from postfix3-1.free.fr ([213.228.0.44]:44225 "EHLO postfix3-1.free.fr") by vger.kernel.org with ESMTP id S261613AbVEANnB (ORCPT ); Sun, 1 May 2005 09:43:01 -0400 Subject: Re: HyperThreading, kernel 2.6.10, 1 logical CPU idle !! From: Boris Fersing To: linux-kernel In-Reply-To: <4273FA88.1060405@free.fr> References: <3Z3u8-28Z-9@gated-at.bofh.it> <4273E2BB.9010509@shaw.ca> <4273FA88.1060405@free.fr> Content-Type: text/plain; charset=UTF-8 Date: Sun, 01 May 2005 15:42:48 +0200 Message-Id: <1114954969.27940.1.camel@electron> Mime-Version: 1.0 X-Mailer: Evolution 2.2.1.1 Content-Transfer-Encoding: 8bit Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1608 Lines: 47 I disabled SMT in the kernel config and yet it seems to work ... Boris. Le samedi 30 avril 2005 à 23:37 +0200, Boris Fersing a écrit : > Robert Hancock a écrit : > > > Boris Fersing wrote: > > > >> Hi there, > >> I've a p4 HT 3,06Ghz, I've HT enabled in the BIOS and in the kernel : > >> > >> Linux electron 2.6.10-cj5 #6 SMP Fri Mar 4 02:18:08 CET 2005 i686 Mobile > >> Intel(R) Pentium(R) 4 CPU 3.06GHz GenuineIntel GNU/Linux . > >> > >> But it seems that one of my cpus is idle (gkrellm monitor or top) : > >> > >> Cpu0 : 88.0% us, 12.0% sy, 0.0% ni, 0.0% id, 0.0% wa, 0.0% hi, > >> 0.0% si > >> Cpu1 : 0.0% us, 0.3% sy, 0.0% ni, 99.7% id, 0.0% wa, 0.0% hi, > >> 0.0% si > >> > >> > >> I'm actually compiling thunderbird with MAKEOPTS="-j3", so , the second > >> should be used, shouldn't it ? > > > > > > Are you sure that it is actually compiling multiple files at once? > > > Yes I'm sure, Even if I launch more than 1 gcc, or for example, start a > compilation + video encoding (mencoder) + ... the second CPU won't work > (idle 100% or sometimes 99,9%). > > Regards, > > Boris. > - > To unsubscribe from this list: send the line "unsubscribe linux-kernel" in > the body of a message to majordomo@vger.kernel.org > More majordomo info at http://vger.kernel.org/majordomo-info.html > Please read the FAQ at http://www.tux.org/lkml/ - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/