From owner-freebsd-alpha Thu Jun 24 0:45: 4 1999 Delivered-To: freebsd-alpha@freebsd.org Received: from herring.nlsystems.com (nlsys.demon.co.uk [158.152.125.33]) by hub.freebsd.org (Postfix) with ESMTP id 1931A14EE7 for ; Thu, 24 Jun 1999 00:44:59 -0700 (PDT) (envelope-from dfr@nlsystems.com) Received: from localhost (dfr@localhost) by herring.nlsystems.com (8.9.3/8.8.8) with ESMTP id IAA35515; Thu, 24 Jun 1999 08:47:03 +0100 (BST) (envelope-from dfr@nlsystems.com) Date: Thu, 24 Jun 1999 08:47:03 +0100 (BST) From: Doug Rabson To: sthaug@nethelp.no Cc: freebsd-alpha@freebsd.org Subject: Re: Significant speedups from -mcpu=ev56 In-Reply-To: <48441.930132275@verdi.nethelp.no> Message-ID: MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: owner-freebsd-alpha@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.org On Wed, 23 Jun 1999 sthaug@nethelp.no wrote: > > It will break on old alphas. I think NetBSD recently added code to their > > kernel to emulate these instructions which would allow them to work (with > > a performance penalty). > > A little question about old Alphas: I have an Alphastation 200 4/100 here, > 100 Mhz 21064. It feels "slow as molasses" compared to e.g. a P-133. Is > there any possibility of overclocking these machines? (Yes, I know, one > shouldn't overclock, and it can break things. I don't care - this is not > a critical machine...) I have absolutely no idea. -- Doug Rabson Mail: dfr@nlsystems.com Nonlinear Systems Ltd. Phone: +44 181 442 9037 To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-alpha" in the body of the message