From owner-freebsd-arm@FreeBSD.ORG Wed Jan 30 10:52:43 2013 Return-Path: Delivered-To: freebsd-arm@freebsd.org Received: from mx1.freebsd.org (mx1.FreeBSD.org [8.8.178.115]) by hub.freebsd.org (Postfix) with ESMTP id E945F538 for ; Wed, 30 Jan 2013 10:52:43 +0000 (UTC) (envelope-from erichsfreebsdlist@alogt.com) Received: from alogt.com (alogt.com [69.36.191.58]) by mx1.freebsd.org (Postfix) with ESMTP id C238BE8C for ; Wed, 30 Jan 2013 10:52:43 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=alogt.com; s=default; h=Content-Transfer-Encoding:Content-Type:Mime-Version:References:In-Reply-To:Message-ID:Subject:Cc:To:From:Date; bh=RQmi4CPNLJUVM1nQEgqRZkZwTiueWCluGQLI69LfK/k=; b=Xe6U/7PCR4jL7i0wS57O14FhblGP/WUwTd+dddIU3ayZAskdIL89iwDXKtlB9jgtaRjFyOGbNCgHjxLf05xbf2ogMrh5NEs85H3bKZiJNq9gdsed3YNbbg6MOKS4NlNx; Received: from [122.129.203.50] (port=26890 helo=X220.ovitrap.com) by sl-508-2.slc.westdc.net with esmtpsa (SSLv3:DHE-RSA-AES128-SHA:128) (Exim 4.80) (envelope-from ) id 1U0VHU-003Cz4-IF; Wed, 30 Jan 2013 03:52:41 -0700 Date: Wed, 30 Jan 2013 17:52:36 +0700 From: Erich Dollansky To: Brett Wynkoop Subject: Re: disk wait mystery Message-ID: <20130130175236.402435ce@X220.ovitrap.com> In-Reply-To: <20130130053729.0c9e018f@ivory.lan> References: <20130130001849.7669e033@ivory.lan> <20130130053729.0c9e018f@ivory.lan> X-Mailer: Claws Mail 3.9.0 (GTK+ 2.24.6; amd64-portbld-freebsd10.0) Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit X-AntiAbuse: This header was added to track abuse, please include it with any abuse report X-AntiAbuse: Primary Hostname - sl-508-2.slc.westdc.net X-AntiAbuse: Original Domain - freebsd.org X-AntiAbuse: Originator/Caller UID/GID - [47 12] / [47 12] X-AntiAbuse: Sender Address Domain - alogt.com X-Get-Message-Sender-Via: sl-508-2.slc.westdc.net: authenticated_id: erichsfreebsdlist@alogt.com X-Source: X-Source-Args: X-Source-Dir: Cc: freebsd-arm@freebsd.org, Ronald Klop X-BeenThere: freebsd-arm@freebsd.org X-Mailman-Version: 2.1.14 Precedence: list List-Id: Porting FreeBSD to the StrongARM Processor List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 30 Jan 2013 10:52:44 -0000 Hi, On Wed, 30 Jan 2013 05:37:29 -0500 Brett Wynkoop wrote: > On Wed, 30 Jan 2013 10:39:37 +0100 > "Ronald Klop" wrote: > > > On Wed, 30 Jan 2013 06:18:49 +0100, Brett Wynkoop > > wrote: > > > > > Greeting- > > > > > > Can anyone figure out why a mainly idle bone with only 2 user > > > shells via ssh running would have so much in disk wait? > > > > > > wynkoop@beaglebone:~ % !ps > > > ps ax > > > PID TT STAT TIME COMMAND > > > 0 - DLs 0:00.02 [kernel] > > > 1 - ILs 0:00.20 /sbin/init -- > > > 2 - DL 0:00.00 [xpt_thrd] > > > 3 - DL 0:01.92 [task: mmc/sd card] > > > 4 - DL 0:00.01 [pagedaemon] > > > 5 - DL 0:00.00 [vmdaemon] > > > 6 - DL 0:00.00 [pagezero] > > > 7 - DL 0:00.02 [bufdaemon] > > > 8 - DL 0:00.02 [vnlru] > > > 9 - DL 0:00.10 [syncer] > > > 10 - RL 17:15.90 [idle] > > > 11 - WL 0:07.91 [intr] > > > 12 - DL 0:00.17 [geom] > > > 13 - DL 0:00.21 [yarrow] > > > 14 - DL 0:00.06 [softdepflush] > > > 15 - DL 0:00.15 [schedcpu] > > > 106 - DL 0:00.00 [md0] > > > 410 - Is 0:00.06 dhclient: cpsw0 [priv] (dhclient) > > > 448 - Is 0:00.07 dhclient: cpsw0 (dhclient) > > > 449 - Is 0:00.01 /sbin/devd > > > 634 - Is 0:00.04 /usr/sbin/sshd > > > 638 - Is 0:00.55 /usr/sbin/cron -s > > > 682 - Is 0:00.64 sshd: wynkoop [priv] (sshd) > > > 685 - S 0:00.29 sshd: wynkoop@pts/0 (sshd) > > > 678 u0 Is+ 0:00.19 /usr/libexec/getty std.9600 ttyu0 > > > 686 0 Ss 0:00.74 -csh (csh) > > > 831 0 R+ 0:00.16 ps ax > > > wynkoop@beaglebone:~ % > > > > > > -Brett > > > > > > > Hi, > > > > Maybe I missed a previous email, but you don't provide much > > information for people to think about. > > As a start you might show the 'disk wait' output. > > > > Ronald. > > > > Ronald- > > From the ps man page: > D Marks a process in disk (or other short term, > uninterruptible) wait. > > > Note all the D entries in the above ps output. > how I understand the system, I would say that these tasks are all swapped out to disk. Erich