From owner-freebsd-questions@FreeBSD.ORG Fri Oct 14 16:11:16 2005 Return-Path: X-Original-To: freebsd-questions@freebsd.org Delivered-To: freebsd-questions@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id 31F2B16A41F for ; Fri, 14 Oct 2005 16:11:16 +0000 (GMT) (envelope-from pb@ludd.ltu.se) Received: from mother.ludd.ltu.se (mother.ludd.ltu.se [130.240.16.3]) by mx1.FreeBSD.org (Postfix) with ESMTP id 50EE943D45 for ; Fri, 14 Oct 2005 16:11:14 +0000 (GMT) (envelope-from pb@ludd.ltu.se) Received: from brother.ludd.ltu.se (brother.ludd.ltu.se [130.240.16.78]) by mother.ludd.ltu.se (8.12.10+Sun/8.12.10) with ESMTP id j9EGBCGc005532 for ; Fri, 14 Oct 2005 18:11:12 +0200 (MEST) Received: from brother.ludd.ltu.se (localhost [127.0.0.1]) by brother.ludd.ltu.se (8.12.10+Sun/8.12.2) with ESMTP id j9EGBCCZ008764 for ; Fri, 14 Oct 2005 18:11:12 +0200 (MEST) Received: (from pb@localhost) by brother.ludd.ltu.se (8.12.10+Sun/8.12.2/Submit) id j9EGBCg2008762 for freebsd-questions@freebsd.org; Fri, 14 Oct 2005 18:11:12 +0200 (MEST) From: Peter B Message-Id: <200510141611.j9EGBCg2008762@brother.ludd.ltu.se> To: freebsd-questions@freebsd.org Date: Fri, 14 Oct 2005 18:11:12 +0200 (MEST) X-Mailer: ELM [version 2.5 PL6] MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit Subject: TSC Timer "Quality" ? X-BeenThere: freebsd-questions@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: User questions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 14 Oct 2005 16:11:16 -0000 Intel pentium cpu timer tsc: 'Timecounter "TSC" frequency X Hz quality Y' (from dmesg) What is the definition of "quality" ..? I have looked briefly in the /usr/src/sys/i386/i386/tsc.c sourcefile and the intel-celeron datasheet. Without finding anything useful. (Btw, Crystals are often defined in terms of ppm)