From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-2.5 required=3.0 tests=DKIM_SIGNED,DKIM_VALID, DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_PASS, USER_AGENT_MUTT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 5C043C04A6B for ; Fri, 10 May 2019 06:32:44 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 1EA63217F4 for ; Fri, 10 May 2019 06:32:44 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=amarulasolutions.com header.i=@amarulasolutions.com header.b="e0ZX4Jpi" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727018AbfEJGcn (ORCPT ); Fri, 10 May 2019 02:32:43 -0400 Received: from mail-wm1-f68.google.com ([209.85.128.68]:50234 "EHLO mail-wm1-f68.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726823AbfEJGcm (ORCPT ); Fri, 10 May 2019 02:32:42 -0400 Received: by mail-wm1-f68.google.com with SMTP id f204so619275wme.0 for ; Thu, 09 May 2019 23:32:41 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=amarulasolutions.com; s=google; h=date:from:to:cc:subject:message-id:references:mime-version :content-disposition:in-reply-to:user-agent; bh=5aFXxfy77Ic34QWQ5GyVYlUA7W7TfPuD7q4ka2XVqr0=; b=e0ZX4JpibBrisiBzW5fDSI4DF9+D/cUR4XX40zQgHn7PJLeRee2ODl9CwEjegfnu9Q S3E0LdTX5shnBKw/c5Uvb4WINrFHwLJy3KkmhKVZvq6yU7IDY3QbdcKrakU+MYmCLLwu /3aGbM8Iv4b3eVJCtzHKm7132wqfzhzpibwlg= X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:date:from:to:cc:subject:message-id:references :mime-version:content-disposition:in-reply-to:user-agent; bh=5aFXxfy77Ic34QWQ5GyVYlUA7W7TfPuD7q4ka2XVqr0=; b=VB7MdQmZoc3uJytEY47DwbzewkjahM0vIQq+r+mknl66QOSHHZHuDoHS8Hlbu2Wi9w vZZR7FarqRNGCg6JfYROXUoJKmhu5awX1vTGpqH9twP64gdZLoM2gU1WcdFQGHMWPG4d Ycx+QfXbMicdnyVFKhln4hKccgWmMprL3Imeqpwk/7pYAJn3d6ACjsW2OjGVcHWzIHYU 3ILQU/EK91jvG44bUQVoCM38cFVB8BlEHmorrFU5WZ3Yp7AimCGRZnYnMFJ85fmSdIRu iKu04L1QcYTpuqLi2zdZabLI3WRTbgO957GT5jYOXeubOCDtJMun+XV1rG/yG7O4PFaw /tJA== X-Gm-Message-State: APjAAAVSrb45Vs4coP+angW5EVnfbQmpxH3jGHAs29vs84Yk5pnkm3/N u6LiREF/2reO3JXbKr2j8b92Qw== X-Google-Smtp-Source: APXvYqzy1xJJdTFH2o8HtuPJUDy8LO0XXT9dLr9SIccg7b0Y35dFsFQf2Gz0PeZb1/AqBFwhYfn+xw== X-Received: by 2002:a05:600c:2291:: with SMTP id 17mr5509469wmf.132.1557469961097; Thu, 09 May 2019 23:32:41 -0700 (PDT) Received: from andrea (86.100.broadband17.iol.cz. [109.80.100.86]) by smtp.gmail.com with ESMTPSA id f2sm10470036wmh.3.2019.05.09.23.32.39 (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Thu, 09 May 2019 23:32:40 -0700 (PDT) Date: Fri, 10 May 2019 08:32:34 +0200 From: Andrea Parri To: "Paul E. McKenney" Cc: Steven Rostedt , Peter Zijlstra , linux-kernel@vger.kernel.org, Ingo Molnar , Juri Lelli , Morten Rasmussen , Joel Fernandes , Vincent Guittot , Thomas Gleixner , Sebastian Andrzej Siewior Subject: Re: Question about sched_setaffinity() Message-ID: <20190510063234.GA4865@andrea> References: <20190430105129.GA3923@linux.ibm.com> <20190430115551.GT2623@hirez.programming.kicks-ass.net> <20190501191213.GX3923@linux.ibm.com> <20190501151655.51469a4c@gandalf.local.home> <20190501202713.GY3923@linux.ibm.com> <20190507221613.GA11057@linux.ibm.com> <20190509173654.GA23530@linux.ibm.com> <20190509214025.GA5385@andrea> <20190509215505.GB5820@andrea> <20190509221730.GM3923@linux.ibm.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20190509221730.GM3923@linux.ibm.com> User-Agent: Mutt/1.5.24 (2015-08-30) Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org > > > Adding some "sched" folks in Cc: hopefully, they can shed some light > > > about this. > > > > +Thomas, +Sebastian > > > > Thread starts here: > > > > http://lkml.kernel.org/r/20190427180246.GA15502@linux.ibm.com > > Peter Zijlstra kindly volunteered over IRC to look at this more closely > tomorrow (well, today, his time). It is quite strange, though! ;-) Sounds good! ;-) Thanx, Andrea