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Thread: Memory Usage in 11.1- KDE4

  1. #1

    Exclamation Memory Usage in 11.1- KDE4

    I had a chance to install 11.1 - KDE 4.2.3 yesterday. I've been using Mandriva 2009.0 and Opensuse 11.0 before this. Now in 11.0 the memory usage for KDE 4.2.3, at boot through htop, came to around 185MB of RAM on my Thinkpad R61 w/ 1GB RAM and Intel Graphics Card. After installing 11.1, I noticed a HUGE memory increase of approx 100MB to 295MB!!

    I've remove beagle, Mono, disabled Nepomuk/Strigi, extra services like nfs etc etc...tweaked the autostart in /usr/share/autostart, /etc/xdg/autostart and the services in /usr/share/kde4/services/kded...removed alsa-plugin-pulse. Didn't see any change...maybe a couple of MB here and there...thats all.

    Has anyone else noticed the same? This is quite a massive memory increase and far far far more than Mandriva 2009.1 for which the KDE 4.2.3 memory usage comes to a meagre 160MB at startup...heck even the 11.0 had a lesser memory footprint!!

    -Anshul

  2. #2
    Join Date
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    Default Re: Memory Usage in 11.1- KDE4

    KDE4's system monitor reports 0.46GiB when Konqueror is running which is not much different from the figures I was getting for KDE3 with Konqueror open.

  3. #3

    Default Re: Memory Usage in 11.1- KDE4

    Just after boot (with kopete, konsole and little more), removing buffers/cache, my system uses ~200MiB. It's a x86-64, it would be lower on 32bits.

  4. #4
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    Default Re: Memory Usage in 11.1- KDE4

    Run System Monitor (ksysguard) to see the programs that use more memory than expected. You can run on both the systems and compare the result.
    openSUSE 12.3 (x86_64) with Kernel 3.7.10-1.16-desktop and KDE 4.11.2 on MacBook Pro
    Latest MS Windows version used: Win95

  5. #5

    Default Re: Memory Usage in 11.1- KDE4

    Quote Originally Posted by RedDwarf View Post
    Just after boot (with kopete, konsole and little more), removing buffers/cache, my system uses ~200MiB. It's a x86-64, it would be lower on 32bits.
    Thats what I get for 11.0...~ 200MB at boot w/o anything turned on. Now I checked all processes through htop and/or ksysguard. It doesn't seem like any of the KDE processes is running away with the memory. Would seem to suspect the kernel which is the basic difference between 11.0 and 11.1, the KDE4 & Qt versions are pretty much the same in both.

    -Anshul

  6. #6
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    Default Re: Memory Usage in 11.1- KDE4

    Quote Originally Posted by anshuljain View Post
    Thats what I get for 11.0...~ 200MB at boot w/o anything turned on. Now I checked all processes through htop and/or ksysguard. It doesn't seem like any of the KDE processes is running away with the memory. Would seem to suspect the kernel which is the basic difference between 11.0 and 11.1, the KDE4 & Qt versions are pretty much the same in both.

    -Anshul
    The last line does it, AFAIK. Are you sure you have the QT45 packages installed (from the Qt repo). These lowered my memory consumption.
    And: regarding memory price per GB, isn't it wiser to add some extra 2GB to your RAM than spending hours on reducing memory consumption? The DOS-days are long-gone
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  7. #7

    Default Re: Memory Usage in 11.1- KDE4

    Yes, I have the latest Qt 4.5 packages installed as well. My laptop isn't exactly a slow poke and I've been using KDE4 merrily on 11.0 and Mandriva w/ 1 GB of RAM. I see no reason to add the extra 2 GB just so that I can use 11.1. 1 GB is way to far too much DOS an just right for KDE4, IMO.

    -Anshul

  8. #8
    JosephKK NNTP User

    Default Re: Memory Usage in 11.1- KDE4

    On Sat, 16 May 2009 12:46:01 GMT, Knurpht
    <Knurpht@no-mx.forums.opensuse.org> wrote:

    >
    >anshuljain;1986614 Wrote:
    >> Thats what I get for 11.0...~ 200MB at boot w/o anything turned on. Now
    >> I checked all processes through htop and/or ksysguard. It doesn't seem
    >> like any of the KDE processes is running away with the memory. Would
    >> seem to suspect the kernel which is the basic difference between 11.0
    >> and 11.1, the KDE4 & Qt versions are pretty much the same in both.
    >>
    >> -Anshul

    >
    >The last line does it, AFAIK. Are you sure you have the QT45 packages
    >installed (from the Qt repo). These lowered my memory consumption.
    >And: regarding memory price per GB, isn't it wiser to add some extra
    >2GB to your RAM than spending hours on reducing memory consumption? The
    >DOS-days are long-gone


    Part of the issue is pissing away 200 Meg for just about nothing in
    return.

  9. #9
    Join Date
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    Default Re: Memory Usage in 11.1- KDE4

    Well, in my case running openSUSE 11.1 (i586) with fully updated KDE 4.3 (4.2.86 (KDE 4.2.86 (KDE 4.3 >= 20090514)) "release 126") ksysguard shows a memory usage of 297 MB right after boot-up with no application running, none, but ksysguard.
    ksysguard shows 126 running processes, none with out of ordinary memory usage.
    what is going on?

  10. #10

    Default Re: Memory Usage in 11.1- KDE4

    marco,
    Thats pretty much in line with that I'm getting as well. Memory usage reports are usually dismissed by users with the statement that "Get more RAM" or devs by "The Memory Measurement Method is Incorrect".

    I'm back to using Mandriva 2009.0 for the time being. The response from Opensuse devs and community has been rather dismissive so far and none wants to look into why this could be happening. To be honest, I'm rather disappointed with the 11.1 KDE release...maybe time to give GNOME (w/o the Mono poison) a try?

    -Anshul

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