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Thread: Laptop very slow

  1. #1
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    Laptop very slow

    I do not know how to check where the problem is,just I have noticed it is getting slower and slower.
    milenko@milenkons:~$ egrep 'GHz|MHz' /proc/cpuinfo
    model name : Pentium(R) Dual-Core CPU T4200 @ 2.00GHz
    cpu MHz : 1200.000
    model name : Pentium(R) Dual-Core CPU T4200 @ 2.00GHz
    cpu MHz : 1200.000
    What should I do?
    I have numerical computations,so It is better when it works properly.

  2. #2
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    Re: Laptop very slow

    Hello Nikolazigic, if the system is getting slower and slower in a noticeable way, then I guess that there is a memory leak in an application you use?

    Please use the top command to see what processes are running etc that may cause this.
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  3. #3
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    Re: Laptop very slow

    Thanks,I have used top but do not know how to interpret this
    milenko@milenkons:~$ top

    top - 10:43:31 up 1:09, 3 users, load average: 0.56, 0.85, 1.02
    Tasks: 166 total, 1 running, 165 sleeping, 0 stopped, 0 zombie
    Cpu(s): 3.6%us, 2.1%sy, 0.0%ni, 94.1%id, 0.0%wa, 0.1%hi, 0.0%si, 0.0%st
    Mem: 2056112k total, 1758180k used, 297932k free, 62412k buffers
    Swap: 6022136k total, 280k used, 6021856k free, 978356k cached

    PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND
    1696 milenko 20 0 385m 168m 21m S 3 8.4 4:15.49 plugin-containe
    1038 root 20 0 60496 30m 11m S 3 1.5 4:44.66 Xorg
    1927 milenko 20 0 123m 15m 11m S 2 0.8 0:06.32 gnome-terminal
    1628 milenko 20 0 637m 179m 35m S 2 8.9 5:23.42 firefox
    1345 milenko 20 0 71264 24m 7844 S 1 1.2 0:19.00 compiz
    66 root 20 0 0 0 0 S 0 0.0 0:02.21 kondemand/1
    1459 root 20 0 5184 876 608 S 0 0.0 0:00.74 udisks-daemon
    3017 milenko 20 0 2544 1244 932 R 0 0.1 0:00.46 top

  4. #4
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    Re: Laptop very slow

    Hm, I cannot figure out many things from your output, so let's go GUI way.

    Please open the System Monitor program and go to Processes tab and make them sort by Memory usage (click on the Memory heading). Do you see any process eating a lot of RAM?
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  5. #5
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    Re: Laptop very slow

    Yes,firefox for example do not know why.I am giving a scrrenchot.

  6. #6
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    Re: Laptop very slow

    so this firefox is somehow confusing.
    Attached Images Attached Images

  7. #7
    hakermania's Avatar
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    Re: Laptop very slow

    Both plugin-container and firefox are eating too much memory (plugin-container is run by firefox)

    As I can see, you have too many instances of Firefox running. Of course, as you understand, it is no possible for any PC to run infinite instances of a process. The memory will be full and then the PC will lag. Why don't you try to have less concurrent instances running?

    Also, as I can see, you are running MATLAB, thus the numerical computations you talked about earlier. Note that when you already do something resource consuming like numerical computations, don't too many things concurrently, you had better close other applications that may consume many resources as well.

    So, the problem is not with the PC or the system, it is logical that, with so many processes running, the PC is turning to be slow. Close some processes!
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