From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751731Ab1JKXQF (ORCPT ); Tue, 11 Oct 2011 19:16:05 -0400 Received: from mail-iy0-f174.google.com ([209.85.210.174]:58631 "EHLO mail-iy0-f174.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751344Ab1JKXQD (ORCPT ); Tue, 11 Oct 2011 19:16:03 -0400 Date: Tue, 11 Oct 2011 16:16:00 -0700 From: Andrew Morton To: Kay Sievers Cc: linux-kernel@vger.kernel.org, lennart@poettering.net, harald@redhat.com, david@fubar.dk, greg@kroah.com, "Kirill A. Shutemov" , Frederic Weisbecker Subject: Re: A =?UTF-8?Q?Plumber=E2=80=99s?= Wish List for Linux Message-Id: <20111011161600.6145aa6b.akpm@linux-foundation.org> In-Reply-To: <1317943022.1095.25.camel@mop> References: <1317943022.1095.25.camel@mop> X-Mailer: Sylpheed 3.0.2 (GTK+ 2.20.1; x86_64-pc-linux-gnu) Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Useful email, thanks. On Fri, 07 Oct 2011 01:17:02 +0200 Kay Sievers wrote: > We___d like to share our current wish list of plumbing layer features we gargh. gmail? > > ... > > * fork throttling mechanism as basic cgroup functionality that is > available in all hierarchies independent of the controllers used: > This is important to implement race-free killing of all members of a > cgroup, so that cgroup member processes cannot fork faster then a cgroup > supervisor process could kill them. This needs to be recursive, so that > not only a cgroup but all its subgroups are covered as well. Frederic Weisbecker's "cgroups: add a task counter subsystem" should address this. Does it meet these requirments? Have you tested it? > > ... > > * Add a timerslack cgroup controller, to allow increasing the timer > slack of user session cgroups when the machine is idle. Kirill Shutemov has just posted "cgroups: introduce timer slack controller". Again, is that sufficient? Have you reviewed and tested it? > > ... >