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Last active October 11, 2018 10:14
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performance analysis in 60s
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perf-in-60s.md

Host perf analysis in 60s

https://youtu.be/89fYOo1V2pA?t=2543

  1. load averages: w or uptime
  2. kernel errors: dmesg -xTL | tail
  3. overall stats by time: vmstat 1
  4. CPU balance: mpstat -P ALL 1
  5. process usage: pidstat 1
  6. disk I/O: iostat -xz 1
  7. memory usage: free -m
  8. network I/O: sar -n DEV 1
  9. TCP stats: sar -n TCP,ETCP 1
  10. check overview: top
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