From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754809AbZCJLt5 (ORCPT ); Tue, 10 Mar 2009 07:49:57 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1752548AbZCJLts (ORCPT ); Tue, 10 Mar 2009 07:49:48 -0400 Received: from yw-out-2324.google.com ([74.125.46.28]:22201 "EHLO yw-out-2324.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752268AbZCJLtr (ORCPT ); Tue, 10 Mar 2009 07:49:47 -0400 DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=gamma; h=mime-version:date:message-id:subject:from:to:content-type :content-transfer-encoding; b=B1QBXCJzABjQhDdOjhNKZ/i76Rsv2qcqL4q/59eeV4LGn2JF3GLZf4h3814kw+9nnK AgRyiWZzefSzc2UYyFeTNjr5pFhQsLZOAEW6DPtK7iQy4Y2taw75dx2mIzScXp7UaR+U PufHWsErrFRpEB5yZHvRgMzT82J2ekLcSZjlo= MIME-Version: 1.0 Date: Tue, 10 Mar 2009 11:49:45 +0000 Message-ID: Subject: cgroup, balance RT bandwidth From: Rolando Martins To: linux-kernel@vger.kernel.org Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Just to confirm, cpuset.sched_load_balance doesn't work with RT, right? You cannot have tasks for sub-domain 2 to utilize bandwidth of sub-domain 3, right? __1__ / \ 2 3 (50% rt) (50% rt ) For my application domain it would be interesting to have rt_runtime_ns as a min. of allocated rt and not a max. Ex. If an application of domain 2 needs to go up to 100% and domain 3 is idle, then it would be cool to let it utilize the full bandwidth. (we also could have a hard upper limit in each sub-domain, like hard_up=0.8, i.e. even if we could get 100%, we will only utilize 80%); in other words, rt having the same cpu bandwidth management behavior as the "best-effort" tasks. Could this be done? Rolando