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What is %idle means in SAR?

 
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Top Forums UNIX for Dummies Questions & Answers What is %idle means in SAR?
# 15  
Old 01-05-2015
Removing this...
Last edited by nanz143; 01-06-2015 at 12:51 AM..
# 16  
Old 01-05-2015
The %idle is on the CPU not the memory.

The post from nanz143 is entirely misleading. To see what your server is doing, you must consider all the statistics you are being given.

The CPU values and the memory usage are not necessarily connected.


If the server is out of real memory then you will see paging/swapping activity and the CPU will be listed as IO-wait rather than idle.

Idle means just that, there is no work to do.




Robin
# 17  
Old 01-05-2015
Plus as I noted in post #4, there is something wrong with the sar output because it shows that the server is using both 8% CPU (100%-92%idle-0%iowait) and 59% CPU (%user+%sys) at the same time.
# 18  
Old 01-06-2015
i see the user was asking a basic question... so I replied in a very layman language... sorry if I was wrong... removed my post
Last edited by nanz143; 01-06-2015 at 12:52 AM..
 
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