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Thread: Why does my OpenSuse 13.2 desktop behave so slowly and jerkily?

  1. #1

    Default Why does my OpenSuse 13.2 desktop behave so slowly and jerkily?

    I have two OpenSuse installations, one desktop and one laptop.

    Both are 'up to date' but only the desktop installation runs extremely slowly and jerkily, sometimes causing the ventilation fan to drive at max speed.

    The Desktop configuration has OpenSuse 13.2 64-bit with Gnome 3.14.1

    CPU is a dual Pentium / 1GB RAM. Swap space is 5GB.

    Can anyone help me to put my finger on the source of this miserable performance? It's driving me nuts!

    Cheers
    Harvey

  2. #2
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    Default Re: Why does my OpenSuse 13.2 desktop behave so slowly and jerkily?

    Run "top" in a terminal. Check whether there is a looping process that is eating CPU time.
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  3. #3

    Default Re: Why does my OpenSuse 13.2 desktop behave so slowly and jerkily?

    Quote Originally Posted by nrickert View Post
    Run "top" in a terminal. Check whether there is a looping process that is eating CPU time.
    About 194 processes are loaded when no other applications are started

    Xorg is always near the top of the list, especially when Firefox is running, and something called glib-pacrunner keeps appearing near the top.

    I wonder if there was some indexing going on, that now seemed to have stopped after about 4 hours up-time?

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    Default Re: Why does my OpenSuse 13.2 desktop behave so slowly and jerkily?

    Quote Originally Posted by hnimmo View Post
    I have two OpenSuse installations, one desktop and one laptop.

    Both are 'up to date' but only the desktop installation runs extremely slowly and jerkily, sometimes causing the ventilation fan to drive at max speed.

    The Desktop configuration has OpenSuse 13.2 64-bit with Gnome 3.14.1

    CPU is a dual Pentium / 1GB RAM. Swap space is 5GB.

    Can anyone help me to put my finger on the source of this miserable performance? It's driving me nuts!

    Cheers
    Harvey
    Well 1GB RAM is a little light these days, especially if running memory intensive applications. Swap will almost certainly be being used, with the overheads that can result from paging in an out.

  5. #5
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    Default Re: Why does my OpenSuse 13.2 desktop behave so slowly and jerkily?

    Quote Originally Posted by hnimmo View Post
    I wonder if there was some indexing going on, that now seemed to have stopped after about 4 hours up-time?
    Fresh install?

    If so, yes, there is heavy indexing on a fresh install of 13.2, unless you turn it off.
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    Default Re: Why does my OpenSuse 13.2 desktop behave so slowly and jerkily?

    1 GiB of RAM and 5 GiB of Swap?
    why use a 64bit version with so little Ram, at most swap should be 2xRam, and if you have more then 2 GiB of ram in my expirience it's better not to use swap, my desktop has 4G of Ram no Swap a 32 bit OS it runs great, I use to run an older P4 with 2 Gigs of ram with no swap, a hdd can not replace Ram, Gnome is quite resource intensive what kind of graphic card/driver do you have, you need decent 3d acceleration for Gnome, you're better off using Mate (if you can get it running) or LXDE for that system.

    imo your problem is with Ram (or lack off) the incredably big swap that causes a lot of hard disk reads/writes and the 64bit OS that requires more RAM, I'd recommenced repartitioning and reinstalling, use 1-2 GiB for Swap and install a 32bit OS, even if you buy more RAM I'd still recommenced less swap and a 32bit OS, 64 is good only if you have 8 or more GiB of Ram.

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    Default Re: Why does my OpenSuse 13.2 desktop behave so slowly and jerkily?

    Quote Originally Posted by I_A View Post
    imo your problem is with Ram (or lack off) the incredably big swap that causes a lot of hard disk reads/writes and the 64bit OS that requires more RAM, I'd recommenced repartitioning and reinstalling, use 1-2 GiB for Swap and install a 32bit OS, even if you buy more RAM I'd still recommenced less swap and a 32bit OS, 64 is good only if you have 8 or more GiB of Ram.
    No, a larger Swap does not cause any problems. Linux does not use the full amount of Swap just because you created a larger partition. Unlike Windows, Swap is a partition, not a file.

    Any Swap space is only used if the System needs it for the task(s) it is performing. With only 1-Gig of RAM, a Swap of 4-Gigs minimum (so, 5-Gigs is fine) should be used.

    The only reason for creating a smaller Swap partition is to free up more HD space for other partitions.
    -Gerry Makaro
    Fraser-Bell Info Tech
    Solving Tech Mysteries since the Olden Days!
    ~~
    If I helped you, consider clicking the Star at the bottom left of my post.

  8. #8

    Default Re: Why does my OpenSuse 13.2 desktop behave so slowly and jerkily?

    Quote Originally Posted by Fraser_Bell View Post
    Fresh install?

    If so, yes, there is heavy indexing on a fresh install of 13.2, unless you turn it off.
    Well it is a fresh install, several days ago, and the system has been running in between (slowly, jerkily) since then. I guess the total run time must have been about 10 hours (at a very rough guess)

  9. #9

    Default Re: Why does my OpenSuse 13.2 desktop behave so slowly and jerkily?

    Quote Originally Posted by nrickert View Post
    Run "top" in a terminal. Check whether there is a looping process that is eating CPU time.
    Something called 'plugin-containe' is right at the top of the list during this particularly jerky behaviour. Where does that come from?

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    Default Re: Why does my OpenSuse 13.2 desktop behave so slowly and jerkily?

    Quote Originally Posted by hnimmo View Post
    Something called 'plugin-containe' is right at the top of the list during this particularly jerky behaviour. Where does that come from?
    That's probably flash applets.

    Try the "flashblock" firefox extension. That way, you only see the flash that you choose to see.
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