Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755823AbYGSPYh (ORCPT ); Sat, 19 Jul 2008 11:24:37 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1754739AbYGSPY3 (ORCPT ); Sat, 19 Jul 2008 11:24:29 -0400 Received: from homer.mvista.com ([63.81.120.158]:14749 "EHLO gateway-1237.mvista.com" rhost-flags-OK-FAIL-OK-OK) by vger.kernel.org with ESMTP id S1754727AbYGSPY3 (ORCPT ); Sat, 19 Jul 2008 11:24:29 -0400 Subject: Re: [patch 1/3] fastboot: Create a "asynchronous" initlevel From: Daniel Walker To: Arjan van de Ven Cc: linux-kernel@vger.kernel.org, mingo@elte.hu In-Reply-To: <20080718222014.34754e7b@infradead.org> References: <20080718151524.5ef9e29b@infradead.org> <20080718151608.46dc17c0@infradead.org> <1216430540.3978.137.camel@localhost.localdomain> <20080718204406.7426e8fe@infradead.org> <1216440697.3978.142.camel@localhost.localdomain> <20080718222014.34754e7b@infradead.org> Content-Type: text/plain Date: Sat, 19 Jul 2008 08:24:26 -0700 Message-Id: <1216481066.3978.159.camel@localhost.localdomain> Mime-Version: 1.0 X-Mailer: Evolution 2.22.3.1 (2.22.3.1-1.fc9) Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1077 Lines: 24 On Fri, 2008-07-18 at 22:20 -0700, Arjan van de Ven wrote: > > btw it's also about learning to crawl before learning to walk, before > learning to run. THis stuff is tricky and there are many hidden > problems; I rather start SIMPLE and understandably right, I don't want > to go "full parallel" now (or maybe ever, no idea, we need to learn > from this step first). Btw: I suspect the biggest gain comes from the > first step or two.. after that you soon get diminishing returns... > Ok .. I'm not trying to rush you .. With that said, the increased number of threads seems like a natural direction to take.. I would assume the returns would diminish depending on the number of threads per the hardware.. For instance , your addition of one thread might even harm the boot time on some single core embedded systems .. Daniel -- 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/