From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-ob0-f178.google.com (mail-ob0-f178.google.com [209.85.214.178]) by kanga.kvack.org (Postfix) with ESMTP id DCE4D6B0075 for ; Thu, 18 Dec 2014 10:08:23 -0500 (EST) Received: by mail-ob0-f178.google.com with SMTP id gq1so3658737obb.9 for ; Thu, 18 Dec 2014 07:08:23 -0800 (PST) Received: from mail-oi0-x230.google.com (mail-oi0-x230.google.com. [2607:f8b0:4003:c06::230]) by mx.google.com with ESMTPS id a196si1573899oig.101.2014.12.18.07.08.22 for (version=TLSv1 cipher=ECDHE-RSA-RC4-SHA bits=128/128); Thu, 18 Dec 2014 07:08:22 -0800 (PST) Received: by mail-oi0-f48.google.com with SMTP id u20so489612oif.7 for ; Thu, 18 Dec 2014 07:08:22 -0800 (PST) MIME-Version: 1.0 In-Reply-To: References: <20141210163017.092096069@linux.com> <20141215075933.GD4898@js1304-P5Q-DELUXE> Date: Fri, 19 Dec 2014 00:08:21 +0900 Message-ID: Subject: Re: [PATCH 0/7] slub: Fastpath optimization (especially for RT) V1 From: Joonsoo Kim Content-Type: text/plain; charset=UTF-8 Sender: owner-linux-mm@kvack.org List-ID: To: Christoph Lameter Cc: Joonsoo Kim , akpm@linuxfoundation.org, Steven Rostedt , LKML , Thomas Gleixner , Linux Memory Management List , Pekka Enberg , Jesper Dangaard Brouer 2014-12-18 23:57 GMT+09:00 Christoph Lameter : > > On Thu, 18 Dec 2014, Joonsoo Kim wrote: >> > Good idea. How does this affect the !CONFIG_PREEMPT case? >> >> One more this_cpu_xxx makes fastpath slow if !CONFIG_PREEMPT. >> Roughly 3~5%. >> >> We can deal with each cases separately although it looks dirty. > > Ok maybe you can come up with a solution that is as clean as possible? Okay. Will do! Thanks. -- 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