From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mailserv.intranet.gr (mailserv.intranet.GR [146.124.14.106]) by ozlabs.org (Postfix) with ESMTP id CDE9C67B15 for ; Mon, 25 Apr 2005 21:59:04 +1000 (EST) Received: from mailserv.intranet.gr (localhost [127.0.0.1]) by mailserv.intranet.gr (8.13.1/8.13.1) with ESMTP id j3PC3PoD003595 for ; Mon, 25 Apr 2005 15:03:27 +0300 (EEST) Message-ID: <426CD83A.6070205@intracom.gr> Date: Mon, 25 Apr 2005 14:44:58 +0300 From: Pantelis Antoniou MIME-Version: 1.0 To: Wolfgang Denk References: <20050424225124.E7314C1510@atlas.denx.de> In-Reply-To: <20050424225124.E7314C1510@atlas.denx.de> Content-Type: text/plain; charset=ISO-8859-1; format=flowed Cc: linux-ppc-embedded Subject: Re: v2.6 performance slowdown on MPC8xx: Measuring TLB cache misses List-Id: Linux on Embedded PowerPC Developers Mail List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Wolfgang Denk wrote: > Dear Marcelo, > [depressing data snipped] > > Wolfgang Denk > Well it's a mess alright. Unfortunately we cannot declare that we'll stay on 2.4 forever. Several subsystems *MTD gough* do not support latest hw, or the developers have moved on to 2.6 full time, refusing to bother with 2.4 anymore. Can we make an effort to pinpoint the performance bottlenecks & re-implement the affected areas sanely? The -tiny patchset is a start, but frankly I don't think it's code/data footprint that it's the problem. IMHO it's not just the small embedded systems that have been affected; just on them the effects are more obvious. So what do you all think? Regards Pantelis