[clug] help

Tue Oct 24 05:36:06 GMT 2006

I want to unsubscribe. Please do soasap

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>Subject: linux Digest, Vol 46, Issue 22
>Date: Mon, 23 Oct 2006 12:00:25 +0000 (GMT)
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>Today's Topics:
>
>    1. high load (Kim Holburn)
>    2. Re: high load (Tony Breeds)
>    3. Re: high load (Kim Holburn)
>    4. Re: high load (Alex Satrapa)
>    5. Re: high load (Peter Barker)
>    6. OT, COMM: For sale: Mini-SD card (mis-purchase),	Free X11
>       based thin clients (Alastair D'Silva)
>
>
>----------------------------------------------------------------------
>
>Message: 1
>Date: Mon, 23 Oct 2006 15:55:01 +1000
>From: Kim Holburn <kim at holburn.net>
>Subject: [clug] high load
>To: CLUG Mailing List <linux at lists.samba.org>
>Message-ID: <0FC04884-252E-4372-97D1-1BDC328D946A at holburn.net>
>Content-Type: text/plain;	charset=US-ASCII;	delsp=yes;	format=flowed
>
>Hi Guys,
>
>I have a server with a load of 44 and top says 99.1% idle.  How do I
>find what's chewing up the resources?
>
>Kim
>
>--
>Kim Holburn
>IT Network & Security Consultant
>Ph: +61 2 61258620 M: +61 417820641  F: +61 2 6230 6121
>mailto:kim at holburn.net  aim://kimholburn
>skype://kholburn - PGP Public Key on request
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>
>Democracy imposed from without is the severest form of tyranny.
>                            -- Lloyd Biggle, Jr. Analog, Apr 1961
>
>
>
>
>
>------------------------------
>
>Message: 2
>Date: Mon, 23 Oct 2006 16:09:21 +1000
>From: Tony Breeds <tony at bakeyournoodle.com>
>Subject: Re: [clug] high load
>To: Kim Holburn <kim at holburn.net>
>Cc: CLUG Mailing List <linux at lists.samba.org>
>Message-ID: <20061023060921.GM27551 at bakeyournoodle.com>
>Content-Type: text/plain; charset=us-ascii
>
>On Mon, Oct 23, 2006 at 03:55:01PM +1000, Kim Holburn wrote:
> > Hi Guys,
> >
> > I have a server with a load of 44 and top says 99.1% idle.  How do I
> > find what's chewing up the resources?
>
>Process blocked on disk I/O?
>
>Yours Tony
>
>    linux.conf.au       http://linux.conf.au/ || 
>http://lca2007.linux.org.au/
>    Jan 15-20 2007      The Australian Linux Technical Conference!
>
>
>
>------------------------------
>
>Message: 3
>Date: Mon, 23 Oct 2006 16:20:52 +1000
>From: Kim Holburn <kim at holburn.net>
>Subject: Re: [clug] high load
>To: CLUG Mailing List <linux at lists.samba.org>
>Message-ID: <BB39D31A-EFE9-4149-84CF-691A4DA2F88C at holburn.net>
>Content-Type: text/plain;	charset=US-ASCII;	delsp=yes;	format=flowed
>
>I expect it is disk IO so how do I check it and how do I work out
>what process is responsible?
>
>On 2006 Oct 23, at 3:57 PM, Tomasz Ciolek wrote:
>
> >  Whats the disk IO queue like?
> >
> >  Tomasz
> >
> > On Mon, Oct 23, 2006 at 03:55:01PM +1000, Kim Holburn wrote:
> >> Hi Guys,
> >>
> >> I have a server with a load of 44 and top says 99.1% idle.  How do I
> >> find what's chewing up the resources?
>
>--
>Kim Holburn
>IT Network & Security Consultant
>Ph: +61 2 61258620 M: +61 417820641  F: +61 2 6230 6121
>mailto:kim at holburn.net  aim://kimholburn
>skype://kholburn - PGP Public Key on request
>Cacert Root Cert: http://www.cacert.org/cacert.crt
>Aust. Spam Act: To stop receiving mail from me: reply and let me know.
>Use ISO 8601 dates [YYYY-MM-DD] http://www.saqqara.demon.co.uk/
>datefmt.htm
>
>Democracy imposed from without is the severest form of tyranny.
>                            -- Lloyd Biggle, Jr. Analog, Apr 1961
>
>
>
>
>
>------------------------------
>
>Message: 4
>Date: Mon, 23 Oct 2006 16:31:08 +1000
>From: Alex Satrapa <grail at goldweb.com.au>
>Subject: Re: [clug] high load
>To: CLUG List <linux at lists.samba.org>
>Message-ID: <D42D98F1-4D1A-49D4-9C32-C195A5D398A3 at goldweb.com.au>
>Content-Type: text/plain; charset=US-ASCII; delsp=yes; format=flowed
>
>On 23 Oct 2006, at 16:20, Kim Holburn wrote:
>
> > I expect it is disk IO so how do I check it and how do I work out
> > what process is responsible?
>
>The only way I'm aware of is to watch the process listings for
>programs that are in the 'D' state. Also keep an eye on 'vmstat 1' -
>it might show you something interesting such as a very high number of
>pages being swapped in/out of VM as would be expected of a rogue
>process trying to write random gibberish over random locations of
>addressable memory.
>
>AFAIK, there is not yet any way in Linux to discern which process is
>actually causing the high I/O apart from killing random processes and
>watching for the high I/O to stop.
>
>HTH
>Alex
>
>
>
>------------------------------
>
>Message: 5
>Date: Mon, 23 Oct 2006 17:19:42 +1000 (EST)
>From: Peter Barker <pbarker at barker.dropbear.id.au>
>Subject: Re: [clug] high load
>To: Alex Satrapa <grail at goldweb.com.au>
>Cc: CLUG List <linux at lists.samba.org>
>Message-ID: <Pine.LNX.4.64.0610231717580.14830 at milligan.fith.priv>
>Content-Type: TEXT/PLAIN; charset=US-ASCII; format=flowed
>
>On Mon, 23 Oct 2006, Alex Satrapa wrote:
>
> >> I expect it is disk IO so how do I check it and how do I work out what
> >> process is responsible?
> > The only way I'm aware of is to watch the process listings for programs 
>that
> > are in the 'D' state. Also keep an eye on 'vmstat 1' - it might show you
>
> > AFAIK, there is not yet any way in Linux to discern which process is 
>actually
> > causing the high I/O apart from killing random processes and watching 
>for the
> > high I/O to stop.
>
>I do remember reading something quite recently on tracing block device
>access to a process (i.e. the "why is my laptop hard disk spinning up
>/again/?" problem).
>
>Can't find that, but here's a link covering this sort of thing:
>
>http://lwn.net/Articles/155340/
>
>I /think/ I read the more up-to-date article on lwn.net, but I'm not sure.
>
> > Alex
>
>Yours,
>--
>Peter Barker                          |   N    _--_|\ /---- Barham, Vic
>Programmer,Sysadmin,Geek              | W + E /     /\
>pbarker at barker.dropbear.id.au         |   S   \_,--?_*<-- Canberra
>You need a bigger hammer.             |             v    [35S, 149E]
>"Peter is apathetic, and I'm vaguely apathetic" -- Rachel, thinking of 
>organising a movie trip
>
>
>------------------------------
>
>Message: 6
>Date: Mon, 23 Oct 2006 20:01:42 +1000
>From: "Alastair D'Silva" <alastair at newmillennium.net.au>
>Subject: [clug] OT, COMM: For sale: Mini-SD card (mis-purchase),	Free
>	X11 based thin clients
>To: <linux at lists.samba.org>
>Message-ID: <200610231001.k9NA1lvJ079354 at locutus.newmillennium.net.au>
>Content-Type: text/plain;	charset="us-ascii"
>
>Hi Folks,
>
>I just bought the wrong SD card for my wife's new phone (it needs 
>Micro-SD),
>so I though I'd offer it up here if anyone is interested.
>
>It's a Corsair 2GB Mini-SD card (with an SD adapter), and is opened, but
>otherwise unused. I'm asking $75 for it (this is the wholesale price) and
>will provide the full 5 year warranty and a tax invoice.
>
>I've also got some thin clients left, free if anyone wants them. The model
>is HP Envizex II, and they boot via BOOTP/NFS (I've got the boot files, and
>they can also be downloaded from here:
>http://www.ductape.net/~brianm/xterm/).
>
>--
>Alastair D'Silva           mob: 0423 762 819
>Networking Consultant      fax: 0413 181 661
>New Millennium Networking  web: http://www.newmillennium.net.au
>
>
>
>------------------------------
>
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>End of linux Digest, Vol 46, Issue 22
>*************************************

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