20 Useful Commands of ‘Sysstat’ Utilities (mpstat, pidstat, iostat and sar) for Linux Performance Monitoring

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Kuldeep Sharma

Currently, Working in Middleware(Jboss/Apache Tomcat) And POSIX related technologies. Having more than 5 years of experience and love to do R&D on different open source tools/technologies.

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4 Responses

  1. Sayyad says:

    Hi Kuldeep,

    Thanks for the good info on SAR..,Not sure if this is a right platform to talk about problem with Sar version 8.1.5.
    One of the issues with sar is that the “sar -A” command gives the datestamp exactly past one month in the first line of the output..
    Any suggestion/help would be much appreciated..


  2. Kuldeep says:

    Thank you :) !!
    You have to change “HISTORY” parameter to 30 days.

    File need to modify:



  3. guru says:

    Hi Kuldeep,

    Good Article.

    I want sar to keep the record of last 30 days, how to do that?

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