From owner-freebsd-arch@FreeBSD.ORG Wed Sep 19 03:08:45 2007 Return-Path: Delivered-To: arch@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id C10CE16A419; Wed, 19 Sep 2007 03:08:45 +0000 (UTC) (envelope-from ambrisko@ambrisko.com) Received: from mail.ambrisko.com (mail.ambrisko.com [64.174.51.43]) by mx1.freebsd.org (Postfix) with ESMTP id 78F4413C468; Wed, 19 Sep 2007 03:08:45 +0000 (UTC) (envelope-from ambrisko@ambrisko.com) Received: from server2.ambrisko.com (HELO www.ambrisko.com) ([192.168.1.2]) by ironport2.ambrisko.com with ESMTP; 18 Sep 2007 19:34:48 -0700 Received: from ambrisko.com (localhost [127.0.0.1]) by www.ambrisko.com (8.14.1/8.12.11) with ESMTP id l8J2e9RN013555; Tue, 18 Sep 2007 19:40:09 -0700 (PDT) (envelope-from ambrisko@ambrisko.com) Received: (from ambrisko@localhost) by ambrisko.com (8.14.1/8.13.1/Submit) id l8J2e9kY013554; Tue, 18 Sep 2007 19:40:09 -0700 (PDT) (envelope-from ambrisko) From: Doug Ambrisko Message-Id: <200709190240.l8J2e9kY013554@ambrisko.com> In-Reply-To: <46F05F88.5060809@errno.com> To: Sam Leffler Date: Tue, 18 Sep 2007 19:40:09 -0700 (PDT) X-Mailer: ELM [version 2.4ME+ PL94b (25)] MIME-Version: 1.0 Content-Transfer-Encoding: 7bit Content-Type: text/plain; charset=US-ASCII Cc: Andre Oppermann , Julian Elischer , arch@freebsd.org Subject: Re: 64bit ticks, was Re: Changing p_swtime and td_slptime to ticks X-BeenThere: freebsd-arch@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Discussion related to FreeBSD architecture List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 19 Sep 2007 03:08:45 -0000 Sam Leffler writes: [snip] | ticks is used a lot. I'd rather set hz back to 100 by default. This | approach is a perfect example of ignoring low-end platforms. FWIW, we set hz to 200 on a bunch of machines so that they don't get interrupted to death. Also the number of interrupts are hz * number of cores in which the number of cores is going up quickly. Doug A.