Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752841AbbKPVW3 (ORCPT ); Mon, 16 Nov 2015 16:22:29 -0500 Received: from mx1.redhat.com ([209.132.183.28]:54567 "EHLO mx1.redhat.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752488AbbKPVW0 (ORCPT ); Mon, 16 Nov 2015 16:22:26 -0500 Date: Mon, 16 Nov 2015 17:52:19 -0200 From: Marcelo Tosatti To: Thomas Gleixner Cc: Peter Zijlstra , Luiz Capitulino , Vikas Shivappa , Tejun Heo , Yu Fenghua , linux-kernel@vger.kernel.org Subject: Re: [PATCH RFC] ioctl based CAT interface Message-ID: <20151116195219.GA317@amt.cnet> References: <20151113163933.GA10222@amt.cnet> <20151113165100.GI17308@twins.programming.kicks-ass.net> <20151113172740.GA13490@amt.cnet> <20151113174300.GA14726@amt.cnet> <20151116085926.GK17308@twins.programming.kicks-ass.net> <20151116130357.GA25951@amt.cnet> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: User-Agent: Mutt/1.5.21 (2010-09-15) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 863 Lines: 26 On Mon, Nov 16, 2015 at 03:42:08PM +0100, Thomas Gleixner wrote: > On Mon, 16 Nov 2015, Marcelo Tosatti wrote: > > You need a task to be part of two cgroups at one time, > > to support the following configuration: > > > > Task-A: 70% of cache reserved exclusively (reservation-0). > > 20% of cache reserved (reservation-1). > > > > Task-B: 20% of cache reserved (reservation-1). > > Why would such a configuration be desired? > > Thanks, > > tglx The HW supports cache sharing, its a HW feature. Makes sense to share reserved cache between threads of an application that for example share a library. -- 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/