From owner-freebsd-sparc64@FreeBSD.ORG Wed Jul 9 12:22:43 2003 Return-Path: Delivered-To: freebsd-sparc64@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id 57CA037B401 for ; Wed, 9 Jul 2003 12:22:43 -0700 (PDT) Received: from mail.seekingfire.com (coyote.seekingfire.com [24.72.10.212]) by mx1.FreeBSD.org (Postfix) with ESMTP id BC93543FD7 for ; Wed, 9 Jul 2003 12:22:42 -0700 (PDT) (envelope-from tillman@seekingfire.com) Received: from blues.seekingfire.prv (blues.seekingfire.prv [192.168.23.211]) by mail.seekingfire.com (Postfix) with ESMTP id E54BBC2 for ; Wed, 9 Jul 2003 13:22:41 -0600 (CST) Received: (from tillman@localhost) by blues.seekingfire.prv (8.11.6/8.11.6) id h69JMf509000 for freebsd-sparc64@freebsd.org; Wed, 9 Jul 2003 13:22:41 -0600 Date: Wed, 9 Jul 2003 13:22:41 -0600 From: Tillman To: freebsd-sparc64@freebsd.org Message-ID: <20030709132241.U1635@seekingfire.com> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline User-Agent: Mutt/1.2.5.1i X-Urban-Legend: There is lots of hidden information in headers Subject: Is "options HZ=" safe on the sparc64 platform? X-BeenThere: freebsd-sparc64@freebsd.org X-Mailman-Version: 2.1.1 Precedence: list List-Id: Porting FreeBSD to the Sparc List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 09 Jul 2003 19:22:43 -0000 Howdy, I'd like to bump my HZ up to 1024 on my ultra 5 in order to smooth out dummynet. I seem to recall that at least one non-Intel platform (Alpha, I believe) uses a higher HZ value by default ... which lead me to wonder if changing it on the sparc64 platform is a safe thing to do :-) I'm using -CURRENT (uname -a is 5.1-CURRENT FreeBSD 5.1-CURRENT #1: Fri Jun 20 16:20:42 CST 2003) on an Ultra 5, with an onboard hme and a 4-port hme card. Any information on HZ values, especially with how they relate to dummynet, is greatly appreciated. - Tillman -- "I'd put a little Loctite on those handlebar fixing bolts if I were you." Translation: The bolt can be unscrewed with a thumb and forefinger, which means the handlebar is likely to fall off, and you will die in the resulting crash. -Geoff Drake, Rider magazine guest editorial