From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from e4.ny.us.ibm.com (e4.ny.us.ibm.com [32.97.182.144]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (Client CN "e4.ny.us.ibm.com", Issuer "Equifax" (verified OK)) by ozlabs.org (Postfix) with ESMTP id A914867B7C for ; Sat, 19 Aug 2006 02:16:59 +1000 (EST) Received: from d01relay04.pok.ibm.com (d01relay04.pok.ibm.com [9.56.227.236]) by e4.ny.us.ibm.com (8.12.11.20060308/8.12.11) with ESMTP id k7IGGtRV005510 for ; Fri, 18 Aug 2006 12:16:55 -0400 Received: from d01av02.pok.ibm.com (d01av02.pok.ibm.com [9.56.224.216]) by d01relay04.pok.ibm.com (8.13.6/8.13.6/NCO v8.1.1) with ESMTP id k7IGGs6P290304 for ; Fri, 18 Aug 2006 12:16:54 -0400 Received: from d01av02.pok.ibm.com (loopback [127.0.0.1]) by d01av02.pok.ibm.com (8.12.11.20060308/8.13.3) with ESMTP id k7IGGsxu023420 for ; Fri, 18 Aug 2006 12:16:54 -0400 From: Arnd Bergmann To: linuxppc-dev@ozlabs.org Subject: Re: [2.6.19 PATCH 3/7] ehea: queue management Date: Fri, 18 Aug 2006 18:16:51 +0200 References: In-Reply-To: MIME-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Message-Id: <200608181816.52079.arnd.bergmann@de.ibm.com> Cc: Thomas Q Klein , Jan-Bernd Themann , netdev , linux-kernel , Christoph Raisch , Marcus Eder , tklein@linux.ibm.com, abergman@de.ibm.com, Arjan van de Ven List-Id: Linux on PowerPC Developers Mail List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , On Friday 18 August 2006 16:24, Christoph Raisch wrote: > And as always in performance tuning... one size fits all unfortunately is > not the correct answer. Ah, good. What is the maximum sensible value that you came up with? > Therefore we'll leave that open to the user as most other new ethernet > driver did as well. Sure. The interesting question is whether you want to allow users to set it to a value that is no longer sensible to do with __get_free_pages() and requires vmalloc(). Arnd <>< From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751106AbWHRQQ5 (ORCPT ); Fri, 18 Aug 2006 12:16:57 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1751244AbWHRQQ5 (ORCPT ); Fri, 18 Aug 2006 12:16:57 -0400 Received: from e2.ny.us.ibm.com ([32.97.182.142]:9900 "EHLO e2.ny.us.ibm.com") by vger.kernel.org with ESMTP id S1751106AbWHRQQ4 (ORCPT ); Fri, 18 Aug 2006 12:16:56 -0400 From: Arnd Bergmann Organization: IBM Deutschland Entwicklung GmbH To: linuxppc-dev@ozlabs.org Subject: Re: [2.6.19 PATCH 3/7] ehea: queue management Date: Fri, 18 Aug 2006 18:16:51 +0200 User-Agent: KMail/1.9.1 Cc: Christoph Raisch , abergman@de.ibm.com, Thomas Q Klein , Jan-Bernd Themann , netdev , linux-kernel , Marcus Eder , tklein@linux.ibm.com, Arjan van de Ven References: In-Reply-To: MIME-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 7bit Content-Disposition: inline Message-Id: <200608181816.52079.arnd.bergmann@de.ibm.com> Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org On Friday 18 August 2006 16:24, Christoph Raisch wrote: > And as always in performance tuning... one size fits all unfortunately is > not the correct answer. Ah, good. What is the maximum sensible value that you came up with? > Therefore we'll leave that open to the user as most other new ethernet > driver did as well. Sure. The interesting question is whether you want to allow users to set it to a value that is no longer sensible to do with __get_free_pages() and requires vmalloc(). Arnd <><