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тАО01-02-2007 06:57 PM
тАО01-02-2007 06:57 PM
In my server , some application program are running in the database , I found that some process use high CPU util ( eg. 25.2 ) , but some are using very low CPU util ( eg. 03 ) , I am strange that the program is similiar , but why have different CPU util ? what is the main reason of they have such difference ? thx.
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тАО01-02-2007 08:01 PM
тАО01-02-2007 08:01 PM
Solution
Hi,
without knowing the application it is diffult to say, but my first point would be to check what the program is doing. If it doing a lot of I/O, the CPU usage would be low, whereas if it doing a lot of calculations the CPU usage would be high. It just depends on when you are monitoring the process.
Amongst other things that can have an impact are process priority and whether the data is already in memory.
without knowing the application it is diffult to say, but my first point would be to check what the program is doing. If it doing a lot of I/O, the CPU usage would be low, whereas if it doing a lot of calculations the CPU usage would be high. It just depends on when you are monitoring the process.
Amongst other things that can have an impact are process priority and whether the data is already in memory.
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тАО01-02-2007 08:14 PM
тАО01-02-2007 08:14 PM
Re: What control the CPU usage ?
It might be as the result of process swapping also, where the CPU runs various processes turn by turn.
Monitor it for a couple of minutes and you will find out how things change.
Monitor it for a couple of minutes and you will find out how things change.
Vibhor Kumar Agarwal
The opinions expressed above are the personal opinions of the authors, not of Hewlett Packard Enterprise. By using this site, you accept the Terms of Use and Rules of Participation.
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