top command

Volcano · 02-09-2012, 05:06 AM

Here is the output from ubuntu top command..

top - 10:54:35 up 50 days, 20:11, 1 user, load average: 0.05, 0.07, 0.08

What does the bold means ?

Cpu(s): 0.0%us, 0.0%sy, 0.0%ni, 98.7%id, 0.0%wa, 0.0%hi, 0.0%si, 1.3%st

I guess sy = system and us = user , id = idle
What does wa , hi , si , st mean ?

colucix · 02-09-2012, 07:13 AM

Code:

top - 10:54:35 up 50 days, 20:11, 1 user, load average: 0.05, 0.07, 0.08

The field in blue is the current time, the field in red is the uptime (the same you get from the uptime command) that is how long the system is up and running. Regarding the CPU percent times:

Code:

us = user time
sy = system time
ni = nice time (see man nice for details)
id = idle time
wa = I/O waiting time
hi = hardware interrupts time
si = software interrupt time
st = steal time (used by virtual machine/processors)

Hope this helps.