From owner-freebsd-current@FreeBSD.ORG Fri Oct 28 09:56:20 2005 Return-Path: X-Original-To: current@freebsd.org Delivered-To: freebsd-current@FreeBSD.ORG Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id 385CB16A41F for ; Fri, 28 Oct 2005 09:56:20 +0000 (GMT) (envelope-from phk@critter.freebsd.dk) Received: from phk.freebsd.dk (phk.freebsd.dk [130.225.244.222]) by mx1.FreeBSD.org (Postfix) with ESMTP id 5A7A743D58 for ; Fri, 28 Oct 2005 09:56:12 +0000 (GMT) (envelope-from phk@critter.freebsd.dk) Received: from critter.freebsd.dk (unknown [192.168.48.2]) by phk.freebsd.dk (Postfix) with ESMTP id 3F7C1BC7A; Fri, 28 Oct 2005 09:56:10 +0000 (UTC) To: Pertti Kosunen From: "Poul-Henning Kamp" In-Reply-To: Your message of "Fri, 28 Oct 2005 12:33:11 +0300." <4361F057.4030904@pp.nic.fi> Date: Fri, 28 Oct 2005 11:56:10 +0200 Message-ID: <30622.1130493370@critter.freebsd.dk> Sender: phk@critter.freebsd.dk Cc: current@freebsd.org, "Yuriy N. Shkandybin" Subject: Re: Timers and timing, was: MySQL Performance 6.0rc1 X-BeenThere: freebsd-current@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Discussions about the use of FreeBSD-current List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 28 Oct 2005 09:56:20 -0000 In message <4361F057.4030904@pp.nic.fi>, Pertti Kosunen writes: >Does polling affect to this test? Not apart from the CPU overhead. sysctl kern.timecounter.hardware is much more important. and all the reports here which fail to include it are mostly useless. -- Poul-Henning Kamp | UNIX since Zilog Zeus 3.20 phk@FreeBSD.ORG | TCP/IP since RFC 956 FreeBSD committer | BSD since 4.3-tahoe Never attribute to malice what can adequately be explained by incompetence.