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Thread: Monitoring process activity

  1. #1

    Lightbulb Monitoring process activity

    Somebody can help me to find a tool or combine tools to make a statistic and build chart of tasks activity, i need to monitoring how much % process use from cpu and show this in grath (%, and hour)

  2. #2
    Join Date
    Sep 2008
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    Sweden
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    57

    Default Re: Monitoring process activity

    The pidstat tool (part of sysstat package) may collect process statistics. Filter out what you are looking for with sed and awk. Plot using graph and plot.

    Maybe sar (system activity recorder) and isag (interactive system activity grapher) will be useful to you.

  3. #3

    Default Re: Monitoring process activity

    can i with pidstat monitoring process activity for 24 Hour and save this to file or this comand is only solution "pidstats 8640 10 > /tmp/stats.txt "

  4. #4
    Join Date
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    Default Re: Monitoring process activity

    Quote Originally Posted by wrongt View Post
    can i with pidstat monitoring process activity for 24 Hour and save this to file
    Yes. Please have a closer look at the man page. Basically all you need to know about this is written there.

    Typically you'll need the process id (pid) of the process you wish to monitor. Assuming you would like to save the output of pidstat once every second for 24 hours into a file you could run the command like this:

    Code:
    pidstat -p pid 1 86400 > /tmp/stats.txt
    Replace pid with the actual process id. Perhaps you should start with a few seconds first, instead of the full 86400 for the entire 24 hours, just to see that this is what you are really looking for.

    But since you are aiming to plot this data in a graph you should first figure out how to filter the output of pidstat, only to get the data needed. This could typically be done with the grep, sed and awk tools. So, have a look at those man pages too.

    In the end, if you wish to use the graph and plot tools to graphically display the data, you need to know the input to those. More man pages to read

    Seeing all this reading of man pages can take a bit of time, perhaps you can tell us why you need to do this. There may be easier ways to accomplish your goal.

  5. #5

    Default Re: Monitoring process activity

    i find a way how to sort needed data , with awk i select column what i need .
    output data look like that
    Code:
    Linux 2.6.27.37-0.1-pae (linux-i85r)    11/11/2009      _i686_
    
    05:09:00 PM       PID    %usr %system  %guest    %CPU   CPU  Command
    05:09:11 PM         6    0.00    0.20    0.00    0.20     1  ksoftirqd/1
    05:09:11 PM      3183    2.99    0.30    0.00    3.29     0  Xorg
    05:09:11 PM      5012    0.00    0.20    0.00    0.20     1  kicker
    
    05:09:11 PM       PID    %usr %system  %guest    %CPU   CPU  Command
    05:09:21 PM         7    0.00    0.20    0.00    0.20     0  events/0
    05:09:21 PM      1542    0.00    0.20    0.00    0.20     0  kjournald
    05:09:21 PM      3183    1.60    0.10    0.00    1.70     0  Xorg
    after executing this script
    Code:
    #!/bin/sh
    cat -n $1 | head -n 3 | awk '{print $1,$2,$3,$4,$8,$10}' > /tmp/stats.txt
    cat -n $1 | awk '{ if($2 != "Average:" && $4 != "PID" && $2 !="" && $1 != "1" ) print $1,$2,$3,$4,$8,$10}' >> /tmp/stats.txt
    the output will look like this
    Code:
    3 05:09:00 PM PID %CPU Command
    4 05:09:11 PM 6 0.20 ksoftirqd/1
    5 05:09:11 PM 3183 3.29 Xorg
    6 05:09:11 PM 5012 0.20 kicker
    7 05:09:11 PM 5027 0.60 yakuake
    after that i can put this output in openoffice and build graph
    but in man page i cant find what option put to pidstat that command look not just for example "Xorg" but full path somthing like this "/usr/bin/Xorg -br -nolisten tcp :0 vt7 -auth /var/lib/xdm/authdir/authfiles/A:0-JYcwic" ., can sombody help me to do this ?


  6. #6
    Join Date
    Sep 2008
    Location
    Sweden
    Posts
    57

    Default Re: Monitoring process activity

    I don't think pidstat can do that. Perhaps you can extend your script to use the ps command together with the process id, pid, in question. Something like this:

    Code:
    ps -f -p pid | grep pid | awk '{for (i=8;i<=NF;i++) printf("%s%s",$i,(i==NF?"\n":" "))}'

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