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Thread: Slow Command Line Interface

  1. #1
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    Question Slow Command Line Interface

    I'm not quite sure if this post belongs here or in the hardware section but here goes. I just finished putting together a new server I'm going to be using for software development. I installed openSUSE 11.4 with KDE but set the default runlevel to 3. Installation went fine and I didn't have any problems until I booted up for the first time after installation. It booted into the graphical CLI and everything appeared to be fine. The only problem is that whenever I run a command that requires the text to scroll, such as a simple
    Code:
    ls -a
    , it scrolls really slowly and appears to have some kind of refresh or hsync problem where the screen is "tearing" while it's scrolling. The CLI works great other than this, but I'm greatly confused as to what the problem is, mostly because if it's a problem with the video output then why does the scrolling seem to slow down? Wouldn't I just see weird pixels but the command line would go at regular speed? Anyway, as I suspect this might be a hardware issue (please let me know what you think) here are my servers components:


    Asus KGPE-D16(ASMB4-IKVM) Motherboard
    2x AMD Opteron 6128
    48GB (12 RDIMM) Ram
    OCZ 30GB SSD (for / partition)
    Adaptec Raid 5805Z running 6x 2TB Seagate Barracuda XT in ext4 RAID 5 (mounted at /srv)
    ATEN CL1000M 17" SingleRail LCD Integrated Console (via KVM to VGA on MB)


    I've run:
    Code:
    init 5
    to boot into KDE and seen no graphical problems there to speak of. Any advice would be greatly appreciated. I'm sorry if I'm starting to bug anyone with all my recent questions.

  2. #2

    Default Re: Slow Command Line Interface

    -----BEGIN PGP SIGNED MESSAGE-----
    Hash: SHA1

    Swap to another TTY.... Alt+F2 through Alt+F6. Once there see if that
    helps. The first TTY is "special" (has that funny background image) an
    has that neat little feature of being slow as a result.

    Good luck.



    - --
    Want to yell at me in person?
    Come to BrainShare 2011 in October: http://tinyurl.com/brainshare2011
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  3. #3
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    Default Re: Slow Command Line Interface

    Well, yes that is a definite option... The only thing is that I'm concerned about why this is happening, not ways around it. I have a scrawny netbook running 11.4 in the same configuration and on the graphical CLI it flies just like any other CLI. Why would my server, which has significantly more power at it's disposal, be having this problem, and my netbook wouldn't? Thank you for your reply though. Seems either I've stumped everyone or the question is so stupid people just aren't responding...

  4. #4
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    Default Re: Slow Command Line Interface

    On 08/17/2011 09:36 AM, nicktlloyd wrote:
    >
    > Why would my server,
    > which has significantly more power at it's disposal, be having this
    > problem, and my netbook wouldn't?


    does your scrawny netbook and significantly more powerful sever use
    exactly the same graphics chips and video driver?

    if not, you have your answer. (speed of video rendering is directly
    related to the graphics in use, and ability of the driver in use..

    maybe you need to change the video driver in your server, look here for
    how and why http://tinyurl.com/37v9y7m

    and, if you run into trouble, ask in a new thread with a subject kinda
    like: changing drive for [nVidia/ATI/Intel] video [FX930X/whatever]

    --
    DD
    openSUSE®, the "German Engineered Automobile" of operating systems!

  5. #5
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    Default Re: Slow Command Line Interface

    So the graphic drivers will slow down the CLI? I suppose I should have immediately checked this but there is a linux driver provided by Asus for the graphics interface. I suppose I should start by installing that... They provide the driver in a .tar file. Is there a way to install that directly through yast or do I need to export it first?

  6. #6
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    Default Re: Slow Command Line Interface

    On 08/17/2011 11:16 AM, nicktlloyd wrote:
    >
    > So the graphic drivers will slow down the CLI?


    as mentioned by AB, real terminal at F1 is a hybrid which includes
    graphics....as do all terminals which run in a window manager or desktop
    environment..

    > I suppose I should have
    > immediately checked this but there is a linux driver provided by Asus
    > for the graphics interface.


    you may be right (probably are, since you are looking at it and i am
    not) but i've not run into anyone here mentioning that Asus provides a
    Linux graphics driver....is this something new? what of Asus do you
    have, a motherboard? mind sharing its model number, please..

    is it an Asus graphics set, or some other brand (ATI, nVidia, Intel, etc)

    > I suppose I should start by installing
    > that... They provide the driver in a .tar file. Is there a way to
    > install that directly through yast or do I need to export it first?


    without looking into the file i couldn't answer except to say: usually
    tar.bz files contain source which must be compiled prior to
    installation....though it is true that some of the folks deeply steeped
    in other operating systems include executables in such..

    perhaps you could give us a link to the file and someone could take a
    look at what you have..

    well, i sure wouldn't feel comfortable recommending you try to install
    it, and if i did i'd ask you to read my sig caveat first....oh, here
    look at this way to feed and care for the graphics systems i'm more
    familiar with: http://tinyurl.com/37v9y7m

    --
    DD Caveat
    openSUSE®, the "German Engineered Automobile" of operating systems!

  7. #7
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    Default Re: Slow Command Line Interface

    The motherboard is an Asus KGPE-D16(ASMB4-IKVM). It uses an Aspeed AST2050 8MB onboard video interface. The website for it is here: ASUSTeK Computer Inc. - Server & Workstation- ASUS KGPE-D16. If you click on downloads and then choose Linux as it's system it has VGA drivers available for download. They only list SUSE support but when you download them the folders are "FreeBSD" "Linux" and "Solaris" so I think they might work directly on the kernel.
    Learning openSUSE
    http://part-time-nerd.blogspot.com/

    Server - openSUSE 11.4, Asus KGPE-D16 Motherboard, 12x 4GB RDIMM, 2x AMD Opteron 6128, OCZ 30GB SSD (OS), Adaptec Raid 5805Z running 6x Seagate 2TB Barracuda XT in RAID 5 (/srv)

  8. #8

    Default Re: Slow Command Line Interface

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    Not knowing what your netbook has for graphics (I may have missed it
    reading the latest stuff... sorry if so) I'd bet that your server's
    onboard graphics setup is pathetic in comparison... after all, servers
    traditionally don't care much about rendering graphics to monitors
    (assuming they even have monitors). Netbooks, though, exist to do
    things like play Youtube videos, stream HD through HDMI ports, and do
    other things that are the traditional domains of NVidia and ATI/AMD and
    so I'd bet your netbook has a lot more power in that regard. Anyway...
    that's all.

    Good luck.


    - --
    Want to yell at me in person?
    Come to BrainShare 2011 in October: http://tinyurl.com/brainshare2011
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  9. #9
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    Default Re: Slow Command Line Interface

    On 08/17/2011 02:16 PM, nicktlloyd wrote:
    >
    > (http://www.asus.com/Server_Workstati...oards/KGPED16/).


    from what i saw at the Asus site it appears your server is certified to
    use SUSE Linux Enterprise Server (SLES) versions 9, 10, and 11...

    which does not mean it is certified to run openSUSE 11.4, or any other
    version...questions about SLES are best put to the folks who make,
    distribute and support SLES at http://tinyurl.com/422mrnu

    which is not to say you are not welcome to hang out here and see if
    there is someone with a great answer for you....but, be advised that
    most (almost all?) have never run SLES 11...i've never even seen it
    running...and, while there is kinship between the two, SLES/D and
    openSUSE are absolutely NOT identical twins..

    finally, as AB mentioned graphics is not important on a server anyway
    and the graphics hardware is almost surely very puny compared to the
    netbook....it you wish it to scroll like a desktop machine you will
    probably need to insert a graphics card into the system..

    --
    DD Caveat
    openSUSE®, the "German Engineered Automobile" of operating systems!

  10. #10
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    Default Re: Slow Command Line Interface

    On Wed, 17 Aug 2011 20:09:00 +0530, DenverD
    <DenverD@no-mx.forums.opensuse.org> wrote:

    > On 08/17/2011 02:16 PM, nicktlloyd wrote:
    >>
    >> (http://www.asus.com/Server_Workstati...oards/KGPED16/).

    >
    > from what i saw at the Asus site it appears your server is certified to
    > use SUSE Linux Enterprise Server (SLES) versions 9, 10, and 11...
    >
    > which does not mean it is certified to run openSUSE 11.4, or any other
    > version...questions about SLES are best put to the folks who make,
    > distribute and support SLES at http://tinyurl.com/422mrnu
    >
    > which is not to say you are not welcome to hang out here and see if
    > there is someone with a great answer for you....but, be advised that
    > most (almost all?) have never run SLES 11...i've never even seen it
    > running...and, while there is kinship between the two, SLES/D and
    > openSUSE are absolutely NOT identical twins..
    >
    > finally, as AB mentioned graphics is not important on a server anyway
    > and the graphics hardware is almost surely very puny compared to the
    > netbook....it you wish it to scroll like a desktop machine you will
    > probably need to insert a graphics card into the system..
    >



    but he installed openSUSE on his server, not SLES, and that should work,
    whether certified or not. and i've seen server hardware with puny graphic
    cards, but never experienced slowdown of any of the virtual terminals due
    to that. i agree that it sounds like a graphics problem though; probably
    the driver that's loaded automatically doesn't agree with the graphics
    card, or the other way around.

    did you (OP) try to run the standard boot line commands, like nomodeset,
    to force loading of a different graphics driver? or start in failsafe
    mode, and see if the termial's still slow?

    --
    phani.

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