From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-wi0-f174.google.com (mail-wi0-f174.google.com [209.85.212.174]) by kanga.kvack.org (Postfix) with ESMTP id 4445A6B0032 for ; Fri, 5 Dec 2014 01:25:08 -0500 (EST) Received: by mail-wi0-f174.google.com with SMTP id h11so388651wiw.13 for ; Thu, 04 Dec 2014 22:25:07 -0800 (PST) Received: from mail-wi0-x236.google.com (mail-wi0-x236.google.com. [2a00:1450:400c:c05::236]) by mx.google.com with ESMTPS id mn7si41220238wjc.31.2014.12.04.22.25.07 for (version=TLSv1 cipher=ECDHE-RSA-RC4-SHA bits=128/128); Thu, 04 Dec 2014 22:25:07 -0800 (PST) Received: by mail-wi0-f182.google.com with SMTP id h11so343668wiw.3 for ; Thu, 04 Dec 2014 22:25:07 -0800 (PST) MIME-Version: 1.0 In-Reply-To: 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> Date: Fri, 5 Dec 2014 10:25:07 +0400 Message-ID: Subject: Re: [RFC v2] percpu: Add a separate function to merge free areas From: Konstantin Khlebnikov Content-Type: text/plain; charset=UTF-8 Sender: owner-linux-mm@kvack.org List-ID: To: Christoph Lameter Cc: Tejun Heo , Al Viro , Leonard Crestez , "linux-mm@kvack.org" , Linux Kernel Mailing List , Sorin Dumitru On Fri, Dec 5, 2014 at 12:20 AM, Christoph Lameter wrote: > 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. percpu allocator maybe be overkill but I think it's worth to make kmem_cache-like thing with pool of objects. > > -- > 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 -- 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