From owner-freebsd-arch Fri Jul 6 11:10:56 2001 Delivered-To: freebsd-arch@freebsd.org Received: from sharmas.dhs.org (cpe-66-1-147-119.ca.sprintbbd.net [66.1.147.119]) by hub.freebsd.org (Postfix) with ESMTP id 0BA7037B406; Fri, 6 Jul 2001 11:10:52 -0700 (PDT) (envelope-from adsharma@sharmas.dhs.org) Received: by sharmas.dhs.org (Postfix, from userid 500) id A2AAD5DD93; Fri, 6 Jul 2001 11:11:00 -0700 (PDT) Date: Fri, 6 Jul 2001 11:11:00 -0700 From: Arun Sharma To: Peter Pentchev Cc: arch@FreeBSD.org, hardware@FreeBSD.org Subject: Re: New hw.cpuhz sysctl as per PR i386/27627 Message-ID: <20010706111100.A10405@sharmas.dhs.org> References: <20010706123840.A598@ringworld.oblivion.bg> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline User-Agent: Mutt/1.3.15i In-Reply-To: <20010706123840.A598@ringworld.oblivion.bg>; from roam@orbitel.bg on Fri, Jul 06, 2001 at 12:38:40PM +0300 Sender: owner-freebsd-arch@FreeBSD.ORG Precedence: bulk List-ID: List-Archive: (Web Archive) List-Help: (List Instructions) List-Subscribe: List-Unsubscribe: X-Loop: FreeBSD.ORG On Fri, Jul 06, 2001 at 12:38:40PM +0300, Peter Pentchev wrote: > Hi, > > Attached is a slight modification of the patch in PR i386/27627. > Are there any downsides to implementing this? If not, how should > it be extended to allow probing non-TSC/non-i386 timecounters? > Does this sysctl adjust itself on machines with Intel SpeedStep technology ? Based on my web searches, the MSRs which contain that info don't seem to be documented. I've read about efforts to reverse engineer the windows utility PRCPU.EXE, but haven't seen any results. It'd be great if this sysctl is adjusted. -Arun To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-arch" in the body of the message