From owner-freebsd-questions@FreeBSD.ORG Mon Aug 23 12:11:01 2010 Return-Path: Delivered-To: freebsd-questions@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id 914361065695 for ; Mon, 23 Aug 2010 12:11:01 +0000 (UTC) (envelope-from pieter@degoeje.nl) Received: from s2m-is-001.service2media.com (rev-132-102.virtu.nl [217.114.102.132]) by mx1.freebsd.org (Postfix) with ESMTP id 310D48FC1E for ; Mon, 23 Aug 2010 12:11:00 +0000 (UTC) Received: from pieter-dev.localnet ([10.0.1.91] RDNS failed) by s2m-is-001.service2media.com with Microsoft SMTPSVC(6.0.3790.4675); Mon, 23 Aug 2010 14:10:58 +0200 From: Pieter de Goeje To: freebsd-questions@freebsd.org Date: Mon, 23 Aug 2010 14:10:57 +0200 User-Agent: KMail/1.13.5 (Linux/2.6.32-5-amd64; KDE/4.4.5; x86_64; ; ) References: <4C701170.9080306@stefreak.de> In-Reply-To: <4C701170.9080306@stefreak.de> MIME-Version: 1.0 Content-Type: Text/Plain; charset="iso-8859-1" Content-Transfer-Encoding: 7bit Message-Id: <201008231410.57986.pieter@degoeje.nl> X-OriginalArrivalTime: 23 Aug 2010 12:10:58.0559 (UTC) FILETIME=[3ED480F0:01CB42BC] Cc: Steffen Neubauer Subject: Re: IO fluctuation 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: Mon, 23 Aug 2010 12:11:01 -0000 On Saturday 21 August 2010 19:48:32 Steffen Neubauer wrote: > I think I can exclude the ZFS implementation too, because I tried dd > if=/dev/da0 of=/dev/null and executed killall -SIGINFO dd while it was > copying and it looked like it stalled randomly too. Not related your problem, but you can press ^T to send SIGINFO to the currently running process. Saves some typing :-) - Pieter