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Thread: Help me find the bottleneck that slows down my pc

  1. #1

    Default Help me find the bottleneck that slows down my pc

    Hi,
    I keep struggling finding out what is causing my pc to slow down badly when for example I go on webpages with a lot of multimedia content (ex, youtube embedded videos, 9GAG) or when browsing zoomed webpages (example, playstation.com) or another example would be, I if go and copy a large file ( 10GB ) from my HDD to an external portable HDD (WD Passport).

    What really happens is this:

    My mouse starts stuttering, windows become unresponsive, for example if I minimize firefox and restore it again I get a grey screen and I have to wait until content appears one by one, navigation trough folders is slow, everything takes time, seconds actually. I pop up the Task manager (C+Esc) and my CPU is not fully loaded nor my RAM maxed out. I don't know why it behaves like the HDD is failing.
    Testing the HDD gives ok and speeds of ~101MBPS. The HDD is a WD on SATA2.
    Temperatures are ok, CPU in full load is 48 degress C

    System is installed as openSUSE wanted, one partition for /, one for user and swap.

    I upgraded recently to openSUSE 13.1 x64 KDE. Previously I had 12.2 X64 KDE and after a while I encountered the same issues. I think I might have some bad hardware but I can't find it, I need to know if there are some tools wich I can use to monitor exaclty what happens when this state of "sickness" comes in. I was thinking on some logging tools, like monitoring the HDD I\O, CPU, GPU, mem usage and the review them.

    Here are the specs, not a very up to date PC but ok for office use.

    AMD X2 240 Dual Core AM3 (AMD Cool & Quite on)
    4GB Dual Channel DDR3
    160GB WD SATA2 HDD
    ASUS M4A78LT-M
    Leadtek GeForce 8600GT 256MB 128Bits with nVidia 331.38 drivers
    OpenSUSE Leap 42.2 x64 KDE

  2. #2

    Default Re: Help me find the bottleneck that slows down my pc

    On 02/26/2014 09:06 AM, robertot5 pecked at the keyboard and wrote:
    > Hi,
    > I keep struggling finding out what is causing my pc to slow down badly
    > when for example I go on webpages with a lot of multimedia content (ex,
    > youtube embedded videos, 9GAG) or when browsing zoomed webpages
    > (example, playstation.com) or another example would be, I if go and copy
    > a large file ( 10GB ) from my HDD to an external portable HDD (WD
    > Passport).
    >
    > What really happens is this:
    >
    > My mouse starts stuttering, windows become unresponsive, for example if
    > I minimize firefox and restore it again I get a grey screen and I have
    > to wait until content appears one by one, navigation trough folders is
    > slow, everything takes time, seconds actually. I pop up the Task manager
    > (C+Esc) and my CPU is not fully loaded nor my RAM maxed out. I don't
    > know why it behaves like the HDD is failing.
    > Testing the HDD gives ok and speeds of ~101MBPS. The HDD is a WD on
    > SATA2.
    > Temperatures are ok, CPU in full load is 48 degress C
    >
    > System is installed as openSUSE wanted, one partition for /, one for
    > user and swap.
    >
    > I upgraded recently to openSUSE 13.1 x64 KDE. Previously I had 12.2 X64
    > KDE and after a while I encountered the same issues. I think I might
    > have some bad hardware but I can't find it, I need to know if there are
    > some tools wich I can use to monitor exaclty what happens when this
    > state of "sickness" comes in. I was thinking on some logging tools, like
    > monitoring the HDD I\O, CPU, GPU, mem usage and the review them.
    >
    > Here are the specs, not a very up to date PC but ok for office use.
    >
    > AMD X2 240 Dual Core AM3 (AMD Cool & Quite on)
    > 4GB Dual Channel DDR3
    > 160GB WD SATA2 HDD
    > ASUS M4A78LT-M
    > Leadtek GeForce 8600GT 256MB 128Bits with nVidia 331.38 drivers
    >
    >


    How much system ram does it have? What the output of the command

    Code:
    free
    Ken
    Last edited by hcvv; 27-Feb-2014 at 03:35. Reason: repaired code tag

  3. #3
    Join Date
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    Sogndal, Noreg
    Posts
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    Default Re: Help me find the bottleneck that slows down my pc

    The first bit concerning web browsing I would blame on flash, its the same here; if I browse with Konqueror the session is also more prone to experience crashes on 'heavy' sites. This is not limited to Linux though, some sites are just bloated with pop-up content which is bound to slow down the load time, especially with older computers; however Flash support for Linux is phasing out, so I suppose some of the reason lies there.
    OpenSuSE 13.1, KDE 4.11.5, 64bit
    Gigabyte 990FXA-UD3, AMD FX8350, MSI GeForce GTX 760, RME HDSP9632, 16GB HyperX Kingston DDR3, Samsung 840-Pro SSD 128GB, WD Desktop Black 1TB, Hitachi Deskstar 7K1000 750GB

  4. #4
    Join Date
    Feb 2009
    Location
    Spain
    Posts
    25,547

    Default Re: Help me find the bottleneck that slows down my pc

    On 2014-02-26 15:06, robertot5 wrote:

    > What really happens is this:
    >
    > My mouse starts stuttering, windows become unresponsive, for example if
    > I minimize firefox and restore it again I get a grey screen and I have
    > to wait until content appears one by one, navigation trough folders is


    Have a look at
    this thread

    --
    Cheers / Saludos,

    Carlos E. R.
    (from 12.3 x86_64 "Dartmouth" at Telcontar)

  5. #5
    Join Date
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    Sogndal, Noreg
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    Default Re: Help me find the bottleneck that slows down my pc

    I think it's a dead link Carlos.
    OpenSuSE 13.1, KDE 4.11.5, 64bit
    Gigabyte 990FXA-UD3, AMD FX8350, MSI GeForce GTX 760, RME HDSP9632, 16GB HyperX Kingston DDR3, Samsung 840-Pro SSD 128GB, WD Desktop Black 1TB, Hitachi Deskstar 7K1000 750GB

  6. #6
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    Location
    Spain
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    Default Re: Help me find the bottleneck that slows down my pc

    On 2014-02-26 16:26, F Sauce wrote:
    >
    > I think it's a dead link Carlos.


    Oops. Typing mistake.

    this thread


    --
    Cheers / Saludos,

    Carlos E. R.
    (from 12.3 x86_64 "Dartmouth" at Telcontar)

  7. #7

    Default Re: Help me find the bottleneck that slows down my pc

    Here is the "free" output with my usual Thunderbird running in the background and firefox opened on this page

    Code:
                 total       used       free     shared    buffers     cached
    Mem:       4053684    3561504     492180      28844      65140    1950924
    -/+ buffers/cache:    1545440    2508244
    Swap:      2103292     478860    1624432


    I know about flash issues, but it does it on pages with no flash content at all. If I zoom in to read some wikipedia pages, even there it starts to do weirds things.
    I also have adblock plugin in Firefox to reduce the clutter of ads popping up.

    I will read the topic mentioned !
    OpenSUSE Leap 42.2 x64 KDE

  8. #8
    Join Date
    Feb 2009
    Location
    Spain
    Posts
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    Default Re: Help me find the bottleneck that slows down my pc

    On 2014-02-27 00:36, robertot5 wrote:
    >
    > Here is the "free" output with my usual Thunderbird running in the
    > background and firefox opened on this page
    >
    >
    > Code:
    > --------------------
    >
    > total used free shared buffers cached
    > Mem: 4053684 3561504 492180 28844 65140 1950924
    > -/+ buffers/cache: 1545440 2508244
    > Swap: 2103292 478860 1624432
    >
    > --------------------


    You are using some swap. Did you hibernate the machine?

    --
    Cheers / Saludos,

    Carlos E. R.
    (from 13.1 x86_64 "Bottle" at Telcontar)

  9. #9

    Default Re: Help me find the bottleneck that slows down my pc

    Quote Originally Posted by robin_listas View Post
    On 2014-02-27 00:36, robertot5 wrote:
    >
    > Here is the "free" output with my usual Thunderbird running in the
    > background and firefox opened on this page
    >
    >
    > Code:
    > --------------------
    >
    > total used free shared buffers cached
    > Mem: 4053684 3561504 492180 28844 65140 1950924
    > -/+ buffers/cache: 1545440 2508244
    > Swap: 2103292 478860 1624432
    >
    > --------------------


    You are using some swap. Did you hibernate the machine?

    --
    Cheers / Saludos,

    Carlos E. R.
    (from 13.1 x86_64 "Bottle" at Telcontar)
    I'm using the sleep function constantly, not hibernation.
    OpenSUSE Leap 42.2 x64 KDE

  10. #10
    Join Date
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    Default Re: Help me find the bottleneck that slows down my pc

    On 2014-02-27 12:46, robertot5 wrote:
    >
    > robin_listas;2627373 Wrote:



    >> You are using some swap. Did you hibernate the machine?


    > I'm using the sleep function constantly, not hibernation.


    Well, in that case, the total of the software you are using needs more
    ram than you have, so that swap is used. This slows down your system.

    However, at the moment you issued the 'free' command, half the ram was
    in buffers and cache, and free memory, so that need for swap would have
    been some time ago.


    You could check swap usage before and after sleep, and this after a
    fresh boot, for verification that swap usage is not caused by the sleep.

    --
    Cheers / Saludos,

    Carlos E. R.
    (from 13.1 x86_64 "Bottle" at Telcontar)

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