From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752978AbbB0MSJ (ORCPT ); Fri, 27 Feb 2015 07:18:09 -0500 Received: from mail-qg0-f52.google.com ([209.85.192.52]:42118 "EHLO mail-qg0-f52.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752178AbbB0MSH (ORCPT ); Fri, 27 Feb 2015 07:18:07 -0500 Date: Fri, 27 Feb 2015 07:18:03 -0500 From: Tejun Heo To: Vikas Shivappa Cc: linux-kernel@vger.kernel.org, vikas.shivappa@intel.com, matt.fleming@intel.com, hpa@zytor.com, tglx@linutronix.de, mingo@kernel.org, peterz@infradead.org, will.auld@intel.com, dave.hansen@intel.com, andi.kleen@intel.com, tony.luck@intel.com, kanaka.d.juvva@intel.com Subject: Re: [PATCH 3/7] x86/intel_rdt: Support cache bit mask for Intel CAT Message-ID: <20150227121803.GF3964@htj.duckdns.org> References: <1424819804-4082-1-git-send-email-vikas.shivappa@linux.intel.com> <1424819804-4082-4-git-send-email-vikas.shivappa@linux.intel.com> <20150227121222.GE3964@htj.duckdns.org> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20150227121222.GE3964@htj.duckdns.org> User-Agent: Mutt/1.5.23 (2014-03-12) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Fri, Feb 27, 2015 at 07:12:22AM -0500, Tejun Heo wrote: > I feel a bit underwhelmed about this new controller and its interface. > It is evidently at a lot lower level and way more niche than what > other controllers are doing, even cpuset. At the same time, as long > as it's well isolated, it piggybacking on cgroup should be okay. I > take it that the feature implemented is too coarse to allow for weight > based distribution? And, Ingo, Peter, are you guys in general agreeing with this addition? As Tony said, we don't wanna be left way behind but that doesn't mean we wanna jump on everything giving off the faintest sign of movement, which sadly has happened often enough in the storage area at least. Thanks. -- tejun