From owner-freebsd-arch Mon Apr 15 22:13:17 2002 Delivered-To: freebsd-arch@freebsd.org Received: from critter.freebsd.dk (critter.freebsd.dk [212.242.86.163]) by hub.freebsd.org (Postfix) with ESMTP id 7909837B416 for ; Mon, 15 Apr 2002 22:13:14 -0700 (PDT) Received: from critter.freebsd.dk (localhost [127.0.0.1]) by critter.freebsd.dk (8.12.2/8.12.2) with ESMTP id g3G5D1Yu063899; Tue, 16 Apr 2002 07:13:06 +0200 (CEST) (envelope-from phk@critter.freebsd.dk) To: Terry Lambert Cc: arch@freebsd.org Subject: Re: get{bin,micro,nano}[up]time() - what precision ? In-Reply-To: Your message of "Mon, 15 Apr 2002 16:29:22 PDT." <3CBB6252.6BAA4E90@mindspring.com> Date: Tue, 16 Apr 2002 07:13:01 +0200 Message-ID: <63898.1018933981@critter.freebsd.dk> From: Poul-Henning Kamp 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 In message <3CBB6252.6BAA4E90@mindspring.com>, Terry Lambert writes: >SPARC had a 4uS resolution in ~1990; it did this by having a >hardware clock of very high resolution, and a low update >frequency, from which a delta was maintained in software, >rather than by having an update requirement for a full >timecounter like structure. As usual: Please don't pay attention to Terry, he is talking without checking his facts and appearantly doesn't even know that FreeBSD is way ahead of the pack when it comes to time keeping code. -- 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. To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-arch" in the body of the message