From mboxrd@z Thu Jan 1 00:00:00 1970 Received: with ECARTIS (v1.0.0; list linux-mips); Thu, 02 Sep 2004 00:35:56 +0100 (BST) Received: from p508B68F0.dip.t-dialin.net ([IPv6:::ffff:80.139.104.240]:42033 "EHLO mail.linux-mips.net") by linux-mips.org with ESMTP id ; Thu, 2 Sep 2004 00:35:52 +0100 Received: from fluff.linux-mips.net (fluff.linux-mips.net [127.0.0.1]) by mail.linux-mips.net (8.12.11/8.12.8) with ESMTP id i81NZpe1007215; Thu, 2 Sep 2004 01:35:51 +0200 Received: (from ralf@localhost) by fluff.linux-mips.net (8.12.11/8.12.11/Submit) id i81NZour007214; Thu, 2 Sep 2004 01:35:50 +0200 Date: Thu, 2 Sep 2004 01:35:50 +0200 From: Ralf Baechle To: Dominic Sweetman Cc: Emmanuel Michon , linux-mips@linux-mips.org Subject: Re: TLB dimensioning Message-ID: <20040901233550.GA5721@linux-mips.org> References: <1094033224.20643.1402.camel@nikita.france.sdesigns.com> <16693.52862.859233.198626@doms-laptop.algor.co.uk> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <16693.52862.859233.198626@doms-laptop.algor.co.uk> User-Agent: Mutt/1.4.1i Return-Path: X-Envelope-To: <"|/home/ecartis/ecartis -s linux-mips"> (uid 0) X-Orcpt: rfc822;linux-mips@linux-mips.org Original-Recipient: rfc822;linux-mips@linux-mips.org X-archive-position: 5765 X-ecartis-version: Ecartis v1.0.0 Sender: linux-mips-bounce@linux-mips.org Errors-to: linux-mips-bounce@linux-mips.org X-original-sender: ralf@linux-mips.org Precedence: bulk X-list: linux-mips On Wed, Sep 01, 2004 at 02:28:30PM +0100, Dominic Sweetman wrote: > 1. Your application has a non-trivial user space of any size; > > 2. The performance of userland code is significant; The kernel's performance also relies on TLB performance. The wired register is making it easy to test performance of kernel and application with a reduced size TLB; maybe I should make that a kernel feature. Ralf