Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1756281Ab0DUUKq (ORCPT ); Wed, 21 Apr 2010 16:10:46 -0400 Received: from Mycroft.westnet.com ([216.187.52.7]:62832 "EHLO mycroft.westnet.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1755413Ab0DUUKp (ORCPT ); Wed, 21 Apr 2010 16:10:45 -0400 MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit Message-ID: <19407.23456.469074.256306@stoffel.org> Date: Wed, 21 Apr 2010 16:10:08 -0400 From: "John Stoffel" To: Hedi Berriche Cc: John Stoffel , Rik van Riel , Alan Cox , Mike Travis , Ingo Molnar , Greg Kroah-Hartman , Linus Torvalds , Jack Steiner , Andrew Morton , Robin Holt , LKML Subject: Re: [Patch 1/1] init: Provide a kernel start parameter to increase pid_max v2 In-Reply-To: <20100421193350.GU16427@zorg.emea.sgi.com> References: <4BCE579C.5070100@sgi.com> <4BCE5A73.3000904@sgi.com> <20100421102350.4c222e6b@lxorguk.ukuu.org.uk> <20100421165934.GN16427@zorg.emea.sgi.com> <4BCF336B.1050706@redhat.com> <19407.20109.308816.104856@stoffel.org> <20100421193350.GU16427@zorg.emea.sgi.com> X-Mailer: VM 8.0.9 under Emacs 22.3.1 (i486-pc-linux-gnu) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1177 Lines: 33 >>>>> "Hedi" == Hedi Berriche writes: Hedi> On Wed, Apr 21, 2010 at 20:15 John Stoffel wrote: Hedi> | >>>>> "Rik" == Rik van Riel writes: Hedi> | Hedi> | Rik> That is 15 kernel threads per CPU. Hedi> | Hedi> | Rik> Reducing the number of kernel threads sounds like a Hedi> | Rik> useful thing to do. Hedi> | Hedi> | Isn't that already a project? Hedi> Yes, thanks to Alan's probing I looked it up Hedi> http://git.kernel.org/pub/scm/linux/kernel/git/tj/wq.git Hedi> but we're definitely talking long term solution vs. something Hedi> that can ease pain now. It seems to me that running Linux on such a large machine is such a specialized niche, the putting in your change to the regular kernel isn't a near term need either. And from the sounds of it, Tejun's work has better long term potential. But hey, I'm generally clueless, so take what I say with a grain of salt. :] John -- 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/