From owner-freebsd-current@FreeBSD.ORG Thu May 1 13:53:22 2003 Return-Path: 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 776F837B401 for ; Thu, 1 May 2003 13:53:22 -0700 (PDT) Received: from critter.freebsd.dk (critter.freebsd.dk [212.242.86.163]) by mx1.FreeBSD.org (Postfix) with ESMTP id 8FBB443FA3 for ; Thu, 1 May 2003 13:53:21 -0700 (PDT) (envelope-from phk@phk.freebsd.dk) Received: from critter.freebsd.dk (localhost [127.0.0.1]) by critter.freebsd.dk (8.12.9/8.12.9) with ESMTP id h41KrGLr003315; Thu, 1 May 2003 22:53:17 +0200 (CEST) (envelope-from phk@phk.freebsd.dk) To: Fred Clift From: "Poul-Henning Kamp" In-Reply-To: Your message of "Thu, 01 May 2003 14:52:14 MDT." <20030501143456.T43897-100000@vespa.dmz.orem.verio.net> Date: Thu, 01 May 2003 22:53:16 +0200 Message-ID: <3314.1051822396@critter.freebsd.dk> cc: freebsd-current@freebsd.org cc: Heiko Schaefer Subject: Re: gbde data corruption? X-BeenThere: freebsd-current@freebsd.org X-Mailman-Version: 2.1.1 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: Thu, 01 May 2003 20:53:22 -0000 In message <20030501143456.T43897-100000@vespa.dmz.orem.verio.net>, Fred Clift writes: >On Tue, 29 Apr 2003, Heiko Schaefer wrote: > >> hm... cpu seems to be not the limiting factor at all - that machine has an >> athlon 1800+ and is idle >>50% most of the time. without understanding the >> technical details, it seems to me that working on bigger chunks of the >> disc at a time would result in much more throughput. > >So how are you measuring cpu? I seem to remember that system load average >and stats as reported by top dont include a good chunck of code executed >by the kernel - some does and some doesn't. Run "top -S" and look for something like this: 503 root -8 0 0K 12K g_bde 0:04 0.00% 0.00% g_bde ad0s1f. -- 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.