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Thread: PulseAudio and MP3 slows down pc

  1. #1

    Question PulseAudio and MP3 slows down pc

    hi, I have OpenSuse 12.2, I monitored the CPU load after feeling the pc slowing down at times and noticed how the 'pulseaudio' process and the mp3 player both take a lot of CPU. I tried with several mp3 players: Amarok, qmmp and even a java based player (Jaco). Reading about 'pulseaudio' I found that it's suppose to cause some trouble so I disabled with Yast, but the problem still persists. Mp3 player can take up from 20% CPU to slowing it down severely for a few seconds at different intervals. Anything else I should be checking ?



    PC data:

    OS: Linux 3.4.11-2.16-default i686
    System: openSUSE 12.2 (i586)
    KDE: 4.8.5 (4.8.5) "release 2"
    Display Info

    Vendor: nVidia Corporation
    Model: Quadro2 Pro
    2D driver: nouveau
    3D driver:


    CPU Information

    Processor (CPU): Intel(R) Pentium(R) 4 CPU 2.80GHz
    Speed: 2,791.48 MHz
    Memory Information

    Total memory (RAM): 2.0 GiB
    Free memory: 651.5 MiB (+ 784.7 MiB Caches)
    Free swap: 2.0 GiB

  2. #2
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    Default Re: PulseAudio and MP3 slows down pc

    On 2013-02-02 01:26, mhunt0 wrote:


    > CPU Information
    >
    > Processor (CPU):
    > Intel(R) Pentium(R) 4 CPU 2.80GHz


    This is your problem.


    > Total memory (RAM):
    > 2.0 GiB


    And this.




    --
    Cheers / Saludos,

    Carlos E. R.
    (from 12.1 x86_64 "Asparagus" at Telcontar)

  3. #3
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    Default Re: PulseAudio and MP3 slows down pc

    A p4 is quite good enough to run Linux. I wonder if perhaps the system is using clock modulation or something. I would install cpupower and check the information about it by running cpupower frequency-info as root.

  4. #4
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    Default Re: PulseAudio and MP3 slows down pc

    @op is the ram a sdram,ddr,ddr2,ddr3 ?
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  5. #5

    Default Re: PulseAudio and MP3 slows down pc

    I never had this problems with previous versions of Suse (10.2, 11.2) regarding mp3 playing or other multimedia files such as video files. The ram is PC800-40 1GB (2X512MB) RDRAM Rambus Memory.



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    Default Re: PulseAudio and MP3 slows down pc

    Your rig is decent. If it is very old then there is chance that motherboard performance might have reduced
    Did we try out what @nightwishfan suggested.
    Also we may need to check whether any clocking issues are there in BIOS.
    I did have problem with lagging of HD videos when using celeron 2 GHZ processors.
    But not with mp3
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  7. #7

    Default Re: PulseAudio and MP3 slows down pc

    yes, I think the PC is old, it's a Dell Precision 340. So far I haven't had any performance issues that I could think of as the hardware been old. The cpupower command returns:

    # cpupower frequency-info


    analyzing CPU 0:
    no or unknown cpufreq driver is active on this CPU
    boost state support:
    Supported: no
    Active: no


    Looks like it can't read the data.

  8. #8
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    Default Re: PulseAudio and MP3 slows down pc

    Quote Originally Posted by mhunt0 View Post
    yes, I think the PC is old, it's a Dell Precision 340. So far I haven't had any performance issues that I could think of as the hardware been old. The cpupower command returns:

    # cpupower frequency-info


    analyzing CPU 0:
    no or unknown cpufreq driver is active on this CPU
    boost state support:
    Supported: no
    Active: no


    Looks like it can't read the data.
    It works for me :-)
    Code:
    $cpupower frequency-info
    analyzing CPU 0:
      driver: acpi-cpufreq
      CPUs which run at the same hardware frequency: 0 1
      CPUs which need to have their frequency coordinated by software: 0
      maximum transition latency: 10.0 us.
      hardware limits: 1.60 GHz - 2.90 GHz
      available frequency steps: 2.90 GHz, 2.80 GHz, 2.70 GHz, 2.60 GHz, 2.50 GHz, 2.40 GHz, 2.30 GHz, 2.20 GHz, 2.10 GHz, 2.00 GHz, 1.90 GHz, 1.80 GHz, 1.70 GHz, 1.60 GHz
      available cpufreq governors: conservative, userspace, powersave, ondemand, performance
      current policy: frequency should be within 1.60 GHz and 2.90 GHz.
                      The governor "ondemand" may decide which speed to use
                      within this range.
      current CPU frequency is 1.60 GHz.
      boost state support:
        Supported: no
        Active: no
        25500 MHz max turbo 4 active cores
        25500 MHz max turbo 3 active cores
        25500 MHz max turbo 2 active cores
        25500 MHz max turbo 1 active cores
    That is totally weird . i paid for a 2.90 GHZ processor but it runs at 1.6
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  9. #9
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    Default Re: PulseAudio and MP3 slows down pc

    Quote Originally Posted by vazhavandan View Post
    That is totally weird . i paid for a 2.90 GHZ processor but it runs at 1.6
    It states right there it will run between 1.6 and 2.9 depending on the system load. Start a flash video or encode and it will say 2.9.

    As for the issue at hand. I am not sure if that is good or bad cpupower shows nothing. Perhaps good as it might mean the system is not using pentium 4 clock modulation (which really slows things down when idle). That being said we are not any closer to solving the issue. I suppose you will have to narrow down all the performance problems. Is 'everything slow?' if not it might just be an issue with video card and sound card. Sorry I do not have any more specific advice at the moment.

  10. #10
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    Default Re: PulseAudio and MP3 slows down pc

    Quote Originally Posted by nightwishfan View Post
    It states right there it will run between 1.6 and 2.9 depending on the system load. Start a flash video or encode and it will say 2.9.

    As for the issue at hand. I am not sure if that is good or bad cpupower shows nothing. Perhaps good as it might mean the system is not using pentium 4 clock modulation (which really slows things down when idle). That being said we are not any closer to solving the issue. I suppose you will have to narrow down all the performance problems. Is 'everything slow?' if not it might just be an issue with video card and sound card. Sorry I do not have any more specific advice at the moment.
    oops . Thanks. I does scale when i start YaST and it refershes the repos. I always though processors ran at a constant cruise speed. But that doesn't seem to be the case. I think the tux is preventing overheating of machines.
    Code:
    $cpupower frequency-info
    analyzing CPU 0:
      driver: acpi-cpufreq
      CPUs which run at the same hardware frequency: 0 1
      CPUs which need to have their frequency coordinated by software: 0
      maximum transition latency: 10.0 us.
      hardware limits: 1.60 GHz - 2.90 GHz
      available frequency steps: 2.90 GHz, 2.80 GHz, 2.70 GHz, 2.60 GHz, 2.50 GHz, 2.40 GHz, 2.30 GHz, 2.20 GHz, 2.10 GHz, 2.00 GHz, 1.90 GHz, 1.80 GHz, 1.70 GHz, 1.60 GHz
      available cpufreq governors: conservative, userspace, powersave, ondemand, performance
      current policy: frequency should be within 1.60 GHz and 2.90 GHz.
                      The governor "ondemand" may decide which speed to use
                      within this range.
      current CPU frequency is 2.90 GHz.
      boost state support:
        Supported: no
        Active: no
        25500 MHz max turbo 4 active cores
        25500 MHz max turbo 3 active cores
        25500 MHz max turbo 2 active cores
        25500 MHz max turbo 1 active cores
    GNOME Version 3.20.2
    openSUSE Leap 42.3 64-bit

    www.vazhavandan.blogspot.com

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