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Chapter 11 – System Monitoring - sar - incorrect options

Hi, I just noticed some typos or incorrect options in the "sar Options" table:
-x -- doesn't exist, should be -d (block device activity)
-r -- is only for memory, not swap
-R -- doesn't exist
-S -- Swap space utilization (see -r above)

Two other, perhaps useful options not mentioned are:
-H Hugepage utilization statistics
-I (capital i) -- Statistics for interrupts

Comments

  • Hi @heiko_s ,

    I went through the command options and you are right (with exception of 'sar -R', which works on CentOS 7). We'll take a look to the table with the information (reference: Table: sar Options).

    cc: @coop .

    Regards,
    Luis.

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