From owner-freebsd-arm@FreeBSD.ORG Sat Mar 6 22:27:39 2010 Return-Path: Delivered-To: freebsd-arm@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id A909B1065672 for ; Sat, 6 Mar 2010 22:27:39 +0000 (UTC) (envelope-from imp@bsdimp.com) Received: from harmony.bsdimp.com (bsdimp.com [199.45.160.85]) by mx1.freebsd.org (Postfix) with ESMTP id 5142D8FC15 for ; Sat, 6 Mar 2010 22:27:39 +0000 (UTC) Received: from localhost (localhost [127.0.0.1]) by harmony.bsdimp.com (8.14.3/8.14.1) with ESMTP id o26MPfm1033606; Sat, 6 Mar 2010 15:25:41 -0700 (MST) (envelope-from imp@bsdimp.com) Date: Sat, 06 Mar 2010 15:26:03 -0700 (MST) Message-Id: <20100306.152603.716362616846278503.imp@bsdimp.com> To: ticso@cicely.de, ticso@cicely7.cicely.de From: "M. Warner Losh" In-Reply-To: <20100306215153.GL58319@cicely7.cicely.de> References: <4B92BD9D.6030709@geocities.com> <20100306211715.GK58319@cicely7.cicely.de> <20100306215153.GL58319@cicely7.cicely.de> X-Mailer: Mew version 6.3 on Emacs 22.3 / Mule 5.0 (SAKAKI) Mime-Version: 1.0 Content-Type: Text/Plain; charset=us-ascii Content-Transfer-Encoding: 7bit Cc: freebsd-arm@freebsd.org Subject: Re: Performance of SheevaPlug on 8-stable X-BeenThere: freebsd-arm@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Porting FreeBSD to the StrongARM Processor List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sat, 06 Mar 2010 22:27:39 -0000 In message: <20100306215153.GL58319@cicely7.cicely.de> Bernd Walter writes: : This is really a long time to count 2^32 with 180MHz. : I would really say that there is something wrong. Sounds a lot like ICACHE isn't being enabled, since a 3-liner like this should be executing entirely out of cache after the first instruction in main prefetches the cache line. Warner