From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755450Ab2AXTyt (ORCPT ); Tue, 24 Jan 2012 14:54:49 -0500 Received: from mail-lpp01m010-f46.google.com ([209.85.215.46]:32872 "EHLO mail-lpp01m010-f46.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752938Ab2AXTys (ORCPT ); Tue, 24 Jan 2012 14:54:48 -0500 Date: Tue, 24 Jan 2012 21:54:38 +0200 (EET) From: Pekka Enberg X-X-Sender: penberg@tux.localdomain To: Christoph Lameter cc: Eric Dumazet , linux-kernel , David Rientjes , "Alex,Shi" , Shaohua Li , Matt Mackall Subject: Re: [PATCH] slub: prefetch next freelist pointer in slab_alloc() In-Reply-To: Message-ID: References: <1324049134.25554.29.camel@edumazet-HP-Compaq-6005-Pro-SFF-PC> User-Agent: Alpine 2.02 (LFD 1266 2009-07-14) MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII; format=flowed Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Fri, 16 Dec 2011, Eric Dumazet wrote: >> Recycling a page is a problem, since freelist link chain is hot on >> cpu(s) which freed objects, and possibly very cold on cpu currently >> owning slab. On Fri, 16 Dec 2011, Christoph Lameter wrote: > Good idea. How do the tcp benchmarks look after this? > > Looks sane. > > Acked-by: Christoph Lameter Applied, thanks!