seeking explanations/examples on Sar/vmstat/netstat etc
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Thread: seeking explanations/examples on Sar/vmstat/netstat etc

  1. #1
    Join Date
    Aug 2000
    Location
    Chicago IL
    Posts
    586
    can somebody pls give me examples on sar and vmstat tools we use in unix? I searched dba support but didnt find anything

    thanks
    Jigar
    "High Salaries = Happiness = Project Success."

  2. #2
    Join Date
    Mar 2001
    Posts
    144
    Taken from the following link:

    http://www.rigreen.freeserve.co.uk/o...em_on_unix.doc

    'vmstat'
    --------
    The 'vmstat' utility is used to print out system-wide information on
    the performance of the paging subsystem. Its major limitation is that
    it does not print out per-process information. The format of 'vmstat'
    output varies between UNIX ports: the key fields to look at are the
    ones that measure the number of page-in and page-out events per
    second. Remember that some paging activity is normal, so you will have
    to decide for yourself what number of pages-in or pages-out per second
    means that your page pool is too small.

    'sar'
    -----
    On SYSV-based systems, the 'sar' utility is used to print out
    system-wide information on the performance of a wide variety of kernel
    subsystems. Like 'vmstat', its major limitation is that it does not
    print out per-process information. The '-r', '-g', and '-p' options
    are the most useful for examining the behavior of the paging subsystem.

  3. #3
    Join Date
    Nov 2000
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    greenwich.ct.us
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    man sar
    man vmstat
    man iostat
    man man
    Jeff Hunter
    marist89@yahoo.com
    http://marist89.blogspot.com/
    Get Firefox!
    "I pledge to stop eating sharks fin soup and will not do so under any circumstances."

  4. #4
    Join Date
    Sep 2001
    Location
    NJ, USA
    Posts
    1,287
    Originally posted by marist89
    man sar
    man vmstat
    man iostat
    man man
    Jeff I like man man!!!

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