Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1757180Ab0KQNYO (ORCPT ); Wed, 17 Nov 2010 08:24:14 -0500 Received: from elasmtp-scoter.atl.sa.earthlink.net ([209.86.89.67]:35242 "EHLO elasmtp-scoter.atl.sa.earthlink.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754390Ab0KQNYN (ORCPT ); Wed, 17 Nov 2010 08:24:13 -0500 DomainKey-Signature: a=rsa-sha1; q=dns; c=nofws; s=dk20050327; d=earthlink.net; b=sCxzq8f4e9SgcpMKkRxr1Dv/FsVy3pBYP7J/zSwZO5ha6G/KWJ5AYqOrZqIIBN2e; h=Received:Message-ID:Date:From:Reply-To:User-Agent:MIME-Version:To:CC:Subject:References:In-Reply-To:Content-Type:Content-Transfer-Encoding:X-ELNK-Trace:X-Originating-IP; Message-ID: <4CE3D763.9020904@earthlink.net> Date: Wed, 17 Nov 2010 08:23:47 -0500 From: Stephen Clark Reply-To: sclark46@earthlink.net User-Agent: Mozilla/5.0 (X11; U; Linux x86_64; en-US; rv:1.9.1.12) Gecko/20100907 Fedora/3.0.7-1.fc12 Thunderbird/3.0.7 MIME-Version: 1.0 To: Lennart Poettering CC: Linus Torvalds , david@lang.hm, Dhaval Giani , Peter Zijlstra , Mike Galbraith , Vivek Goyal , Oleg Nesterov , Markus Trippelsdorf , Mathieu Desnoyers , Ingo Molnar , LKML , Balbir Singh Subject: Re: [RFC/RFT PATCH v3] sched: automated per tty task groups References: <1289916171.5169.117.camel@maggy.simson.net> <1289916683.2109.625.camel@laptop> <20101116170312.GA19327@tango.0pointer.de> <20101116181603.GC19327@tango.0pointer.de> <20101116203306.GE27235@tango.0pointer.de> <20101116211431.GA15211@tango.0pointer.de> In-Reply-To: <20101116211431.GA15211@tango.0pointer.de> Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit X-ELNK-Trace: a437fbc6971e80f61aa676d7e74259b7b3291a7d08dfec79160a541a2d7b296c80d18cdac53540d3350badd9bab72f9c350badd9bab72f9c350badd9bab72f9c X-Originating-IP: 69.22.83.66 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1805 Lines: 48 On 11/16/2010 04:14 PM, Lennart Poettering wrote: > On Tue, 16.11.10 12:38, Linus Torvalds (torvalds@linux-foundation.org) wrote: > > >> On Tue, Nov 16, 2010 at 12:33 PM, Lennart Poettering >> wrote: >> >>> No you don't. Because that is not a desktop use case. >>> >> See my other response. You don't care AT ALL, because by your >> judgement, all desktop is is a web browser and a word processor. >> > Well, I do care. But I care more about *real* problems. For example the > fact that "updatedb" makes your system sluggish while it runs. Or > "man-db". Or anything else that runs from cron in the background. > > Doing this tty dance won't help you much with background tasks such as > man-db, updatedb and cron and its jobs, will it? They don't have > ttys. Sorry for you. meh! Meh! meh! meh! meh! > > (And along comes systemd, which actually handles this properly, since it > actually has a proper notion of what a service is, and what a session > is, and what an app is. And which hence can control all this sanely.) > > Binding this to a tty is just solves a tiny bit of the real problem: > i.e. your own use of make -j. End of story. > > Lennart > > Oh, you mean real problems like systemd can boot 10 seconds faster. What is 10 seconds when your system is up days or weeks? -- "They that give up essential liberty to obtain temporary safety, deserve neither liberty nor safety." (Ben Franklin) "The course of history shows that as a government grows, liberty decreases." (Thomas Jefferson) -- 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/