From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-ig0-f170.google.com (mail-ig0-f170.google.com [209.85.213.170]) by kanga.kvack.org (Postfix) with ESMTP id A7E926B0088 for ; Thu, 4 Dec 2014 16:20:42 -0500 (EST) Received: by mail-ig0-f170.google.com with SMTP id r2so20497871igi.3 for ; Thu, 04 Dec 2014 13:20:42 -0800 (PST) Received: from resqmta-po-12v.sys.comcast.net ([2001:558:fe16:19:250:56ff:feb0:855]) by mx.google.com with ESMTPS id m10si1119007icf.102.2014.12.04.13.20.41 for (version=TLSv1.2 cipher=RC4-SHA bits=128/128); Thu, 04 Dec 2014 13:20:41 -0800 (PST) Date: Thu, 4 Dec 2014 15:20:40 -0600 (CST) From: Christoph Lameter 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: owner-linux-mm@kvack.org List-ID: To: Tejun Heo Cc: Al Viro , Leonard Crestez , linux-mm@kvack.org, linux-kernel@vger.kernel.org, Sorin Dumitru 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, 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