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20 lines
1.2 KiB
Org Mode
20 lines
1.2 KiB
Org Mode
#+title: Atop
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#+setupfile: ../org-templates/page.org
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** Get lowest memfree for given analysis date
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#+BEGIN_SRC bash
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atopsar -r /var/log/atop/atop_20240703 -m -R 1 | awk 'NR<7{print $0;next}{print $0| "sort -k 3,4"}' | head -11
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#+END_SRC
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- ~atopsar~ : atop's system activity report.
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- ~-r /var/log/atop/atop_20240703~ : Log file to use.
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- ~-m~ : Memory- and swap-occupation
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- ~-R 1~ : Summarize 1 sample into one sample. Log file contains samples of 10 minutes, so this will summarize each sample. ~-R 6~ will summarize one sample per 60 minutes.
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- ~awk 'NR<7{print $0;next}{print $0| "sort -k 3,4"}'~ : For number of input records (~NR~) less than ~7~, ~print~ the input record (~$0~), go to the ~next~ input record and repeat the ~{print $0}~ pattern until the end is reached, then execute the END rule. The END rule in this case is ~{print $0| "sort -k 3,4"}~, it prints the remaining input records after piping them through the ~"sort -k 3,4"~ command. This avoids sorting the first 7 lines of the atopsar command.
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- ~head -11~ : Get the top 11 lines of output.
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** Get top 3 memory processes for given analysis date
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#+BEGIN_SRC bash
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atopsar -G -r /var/log/atop/atop_20240710
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#+END_SRC
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