Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2992781AbWJUByD (ORCPT ); Fri, 20 Oct 2006 21:54:03 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S2992783AbWJUByD (ORCPT ); Fri, 20 Oct 2006 21:54:03 -0400 Received: from mail.kroah.org ([69.55.234.183]:5309 "EHLO perch.kroah.org") by vger.kernel.org with ESMTP id S2992781AbWJUByA (ORCPT ); Fri, 20 Oct 2006 21:54:00 -0400 Date: Fri, 20 Oct 2006 17:50:14 -0700 From: Greg KH To: Andi Kleen Cc: artusemrys@sbcglobal.net, Mariusz Kozlowski , linux-kernel@vger.kernel.org, Dave Airlie , akpm@osdl.org Subject: Re: 2.6.19-rc2-mm2 Message-ID: <20061021005014.GC12131@kroah.com> References: <20061020015641.b4ed72e5.akpm@osdl.org> <200610201339.49190.m.kozlowski@tuxland.pl> <20061020091901.71a473e9.akpm@osdl.org> <200610201854.43893.m.kozlowski@tuxland.pl> <20061020102520.67b8c2ab.akpm@osdl.org> <45394F97.9010401@sbcglobal.net> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: User-Agent: Mutt/1.5.13 (2006-08-11) Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1305 Lines: 32 On Sat, Oct 21, 2006 at 02:16:28AM +0200, Andi Kleen wrote: > Matthew Frost writes: > > > Andrew Morton wrote: > > > > > Ow. Multithreaded probing was probably a bt ambitious, given the current > > > status of kernel startup.. > > > > > > Greg, does it actually speed anything up or anything else good? > > > > > > > I'm on a x86 (P4) hi-mem machine, plenty of onboard PCI (audio, LAN, bonus IDE > > controller, etc.), and it has sped up my boot process. Between the USB and PCI > > multithread probing, my dmesg is a bit out of order from its ordinary sequence, > > but the only things that stall it now are my MD-RAID partitions getting set up. > > Did you measure it? Feelings and impressions tend to be unreliable. Yeah, real numbers would be good to have. I have measured 7-8 seconds off the boot on my workstation, and 2 seconds off the boot for my laptop. All of the time saved seems to be due to slow SATA startup times, and the machine is off initializing other things while that is happening. thanks, greg k-h - 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/