From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-pa0-f48.google.com (mail-pa0-f48.google.com [209.85.220.48]) by kanga.kvack.org (Postfix) with ESMTP id 3E6A96B0032 for ; Wed, 14 Jan 2015 09:28:53 -0500 (EST) Received: by mail-pa0-f48.google.com with SMTP id rd3so10796245pab.7 for ; Wed, 14 Jan 2015 06:28:53 -0800 (PST) Received: from mx2.parallels.com (mx2.parallels.com. [199.115.105.18]) by mx.google.com with ESMTPS id c8si30988861pat.105.2015.01.14.06.28.51 for (version=TLSv1.2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Wed, 14 Jan 2015 06:28:51 -0800 (PST) Date: Wed, 14 Jan 2015 17:28:41 +0300 From: Vladimir Davydov Subject: Re: [patch 2/2] mm: memcontrol: default hierarchy interface for memory Message-ID: <20150114142841.GE11264@esperanza> References: <1420776904-8559-1-git-send-email-hannes@cmpxchg.org> <1420776904-8559-2-git-send-email-hannes@cmpxchg.org> MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Disposition: inline In-Reply-To: <1420776904-8559-2-git-send-email-hannes@cmpxchg.org> Sender: owner-linux-mm@kvack.org List-ID: To: Johannes Weiner Cc: Andrew Morton , Michal Hocko , Greg Thelen , linux-mm@kvack.org, cgroups@vger.kernel.org, linux-kernel@vger.kernel.org On Thu, Jan 08, 2015 at 11:15:04PM -0500, Johannes Weiner wrote: > - memory.low configures the lower end of the cgroup's expected > memory consumption range. The kernel considers memory below that > boundary to be a reserve - the minimum that the workload needs in > order to make forward progress - and generally avoids reclaiming > it, unless there is an imminent risk of entering an OOM situation. AFAICS, if a cgroup cannot be shrunk back to its low limit (e.g. because it consumes anon memory, and there's no swap), it will get on with it. Is it considered to be a problem? Are there any plans to fix it, e.g. by invoking OOM-killer in a cgroup that is above its low limit if we fail to reclaim from it? Thanks, Vladimir -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@kvack.org. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: email@kvack.org