Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754795AbaLDVUm (ORCPT ); Thu, 4 Dec 2014 16:20:42 -0500 Received: from resqmta-po-04v.sys.comcast.net ([96.114.154.163]:53179 "EHLO resqmta-po-04v.sys.comcast.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752997AbaLDVUl (ORCPT ); Thu, 4 Dec 2014 16:20:41 -0500 Date: Thu, 4 Dec 2014 15:20:40 -0600 (CST) From: Christoph Lameter X-X-Sender: cl@gentwo.org To: Tejun Heo cc: Al Viro , Leonard Crestez , linux-mm@kvack.org, linux-kernel@vger.kernel.org, Sorin Dumitru Subject: Re: [RFC v2] percpu: Add a separate function to merge free areas In-Reply-To: <20141204211912.GG4080@htj.dyndns.org> Message-ID: References: <547E3E57.3040908@ixiacom.com> <20141204175713.GE2995@htj.dyndns.org> <5480BFAA.2020106@ixiacom.com> <20141204205202.GP29748@ZenIV.linux.org.uk> <20141204211912.GG4080@htj.dyndns.org> Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Thu, 4 Dec 2014, Tejun Heo wrote: > Docker usage is pretty wide-spread now, making what used to be > siberia-cold paths hot enough to cause actual scalability issues. > Besides, we're now using percpu_ref for things like aio and cgroup > control structures which can be created and destroyed quite > frequently. I don't think we can say these are "weird" use cases > anymore. Well then lets write a scalable percpu allocator. -- 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/