DESCRIPTION
top provides an ongoing look at processor activity in real time. It displays a listing of the most CPU-intensive tasks on the system, and can provide an interactive interface for manipulating processes. It can sort the tasks by CPU usage, memory usage and runtime. can be better configured than the standard top from the procps suite. Most features can either be selected by an interactive command or by specifying the feature in the personal or system-wide configuration file. See below for more information
CPU Section;
us -> User CPU time: The time the CPU has spent running users’ processes that are not niced.
sy -> System CPU time: The time the CPU has spent running the kernel and its processes.
ni -> Nice CPU time: The time the CPU has spent running users’ proccess that have been niced.
wa -> iowait: Amount of time the CPU has been waiting for I/O to complete.
hi -> Hardware IRQ: The amount of time the CPU has been servicing hardware interrupts.
si -> Software Interrupts: The amount of time the CPU has been servicing software interrupts
st = steal (used by virtual CPUs waiting while the hypervisor is servicing another virtual processor, on virtual machines)
id = idle CPU
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