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What methods can be used to determine the cause of a high Load Average on a server?

sobes.tech AI

Answer from AI

To determine the cause of high Load Average on a server, the following methods can be used:

  1. top or htop command — shows current CPU load, processes consuming resources.
  2. uptime command — quick display of Load Average.
  3. vmstat command — provides information on processes, memory, input/output, and CPU.
  4. iostat command — analyzes disk load.
  5. ps command — allows finding processes with high CPU or memory usage.
  6. System logs — may contain errors or warnings affecting performance.

For example, to find processes with maximum CPU load:

ps -eo pid,ppid,cmd,%mem,%cpu --sort=-%cpu | head

By analyzing this data, bottlenecks can be identified: CPU overload, input/output wait, or memory issues.