Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751851AbaAQFnF (ORCPT ); Fri, 17 Jan 2014 00:43:05 -0500 Received: from mail-pd0-f173.google.com ([209.85.192.173]:49971 "EHLO mail-pd0-f173.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751064AbaAQFnB (ORCPT ); Fri, 17 Jan 2014 00:43:01 -0500 Message-ID: <1389937378.31367.470.camel@edumazet-glaptop2.roam.corp.google.com> Subject: Re: [PATCH net-next v2 3/3] reciprocal_divide: correction/update of the algorithm From: Eric Dumazet To: Hannes Frederic Sowa Cc: netdev@vger.kernel.org, Austin S Hemmelgarn , linux-kernel@vger.kernel.org, Jesse Gross , Jamal Hadi Salim , Stephen Hemminger , Matt Mackall , Pekka Enberg , Christoph Lameter , Andy Gospodarek , Veaceslav Falico , Jay Vosburgh , Jakub Zawadzki , Daniel Borkmann Date: Thu, 16 Jan 2014 21:42:58 -0800 In-Reply-To: <20140117042901.GB26022@order.stressinduktion.org> References: <1389918519-23779-1-git-send-email-hannes@stressinduktion.org> <1389918519-23779-4-git-send-email-hannes@stressinduktion.org> <1389926017.31367.464.camel@edumazet-glaptop2.roam.corp.google.com> <20140117042901.GB26022@order.stressinduktion.org> Content-Type: text/plain; charset="UTF-8" X-Mailer: Evolution 3.2.3-0ubuntu6 Content-Transfer-Encoding: 7bit Mime-Version: 1.0 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Fri, 2014-01-17 at 05:29 +0100, Hannes Frederic Sowa wrote: > Also I doubt the performance drop for SLAB will be that massive. Also it was > already replaced by SLUB as the default SLAB allocator, which doesn't use > reciprocal_divide. Google servers use SLAB, not SLUB, for various reasons, and performance is one of them. -- 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/