From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1031598AbXEAIkI (ORCPT ); Tue, 1 May 2007 04:40:08 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1031597AbXEAIkH (ORCPT ); Tue, 1 May 2007 04:40:07 -0400 Received: from ug-out-1314.google.com ([66.249.92.168]:53061 "EHLO ug-out-1314.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1031600AbXEAIkF (ORCPT ); Tue, 1 May 2007 04:40:05 -0400 DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=beta; h=received:message-id:date:from:user-agent:mime-version:to:cc:subject:references:in-reply-to:x-enigmail-version:content-type:content-transfer-encoding; b=GquzkKR0QHXFCzoSHtDs9r24od3X/WN3yvSgYaWiRhczfqcNlbQhQOVTyYm0zOivIux/bcIwwhob7CPtNevRas3ecmFci4Wv6KjnOWOhUOFHZy26NRhMgF9lgvAKPOUnXXTus8GIsslQVb7SJc2gfkQNzBLAIpJOYxXFKJPcyhg= Message-ID: <4636FCE3.6000405@gmail.com> Date: Tue, 01 May 2007 10:40:03 +0200 From: Jiri Slaby User-Agent: Thunderbird 2.0.0.0 (X11/20070326) MIME-Version: 1.0 To: Andrew Morton CC: Linux Kernel Mailing List Subject: Re: 2.6.21-mm1: many processes end up in D state References: <46360DA7.6040003@gmail.com> <20070430110510.1f559d34.akpm@linux-foundation.org> <4af2d03a0704301114sc84b358td8781c91b8564c38@mail.gmail.com> <20070430114449.1dad1ab2.akpm@linux-foundation.org> In-Reply-To: <20070430114449.1dad1ab2.akpm@linux-foundation.org> X-Enigmail-Version: 0.95b Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Andrew Morton napsal(a): > I would check the anticipatory scheduler as well, please. I don't know > what no-op would do with a workload like that, but it probably isn't very > good. > > You appear to believe that it's related to the CPU scheduler? Oh, no. I have really no idea, what may cause this :). > That's a bit > unexpected - it sounds more like a VFS/IO thing? But stranger things have > happened. I think so. > I guess it's time to end the staircase experiment in -mm. > http://userweb.kernel.org/~akpm/js.bz2 is my current rollup (against > 2.6.21) minus staircase and related things. Pretty please. Anticipatory + -js is no change. Going to try vanilla and in both cases whether it works or not, I'll bisect either -mm or vanilla. regards, -- http://www.fi.muni.cz/~xslaby/ Jiri Slaby faculty of informatics, masaryk university, brno, cz e-mail: jirislaby gmail com, gpg pubkey fingerprint: B674 9967 0407 CE62 ACC8 22A0 32CC 55C3 39D4 7A7E