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top is showing 0% cpu Idle

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Operating Systems Solaris top is showing 0% cpu Idle
# 1  
Old 02-02-2010
top is showing 0% cpu Idle
What should we do if we show a 0% cpu idl on top?
# 2  
Old 02-02-2010
Identify from top itself that which is the process is hogging CPU resources.
# 3  
Old 02-03-2010
Top's default behavior should list the culprit process as the first process
# 4  
Old 02-03-2010
The true question is for how long (it could be a temporary normal situation...) and how is the cpu usage? more than 75% user would mean all is fine more than 60% system means you need to investigate...
# 5  
Old 02-03-2010
If top shows several cpus all at 100% for a sustained period of time there is a capacity problem or some rogue software. If you only have one cpu it will show 100% whenever it is used (even by the program top itself).
What is the scale of this server?
# 6  
Old 02-06-2010
I suppose that these should be the only temporary peaks. Try vmstat -5 and collect some data so we have possibility to clarify if this is the really pain of your server. Via prstat -s cpu you can clarify which process is so cpu demanding.
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