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troubleshooting linux high cpu utilization

1. us -> User CPU time: The time the CPU has spent running users’
processes that are not niced.
2. sy -> System CPU time: The time the CPU has spent running the
kernel and its processes.
3. ni -> Nice CPU time: The time the CPU has spent running users’
proccess that have been niced.
4. wa -> iowait: Amount of time the CPU has been waiting for I/O to complete.
5. hi -> Hardware IRQ: The amount of time the CPU has been servicing
hardware interrupts.
6. si -> Software Interrupts.: The amount of time the CPU has been
servicing software interrupts.

ps -eo pcpu,pid,user,args | sort -k 1 -r | head -10