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difference between elapsed time and the cpu time

 
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Diya
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PostPosted: Tue Jun 20, 2006 4:18 pm    Post subject: difference between elapsed time and the cpu time Reply with quote
Can anyone tell me what is difference between elapsed time and CPU time ......plz.......
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chris_alex3k
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Joined: 19 Jun 2006
Posts: 3
PostPosted: Tue Jun 20, 2006 5:32 pm    Post subject: Hi Reply with quote
Elapsed Time = Waiting time of the Job + CPU Time

other wise

Elapsed Time = Waiting time of the Job + Execution Time


Correct me If i am wrong!!!!
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Juan
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Joined: 29 Jun 2006
Posts: 9
PostPosted: Thu Jun 29, 2006 3:56 pm    Post subject: Reply with quote
Elapsed time is wall clock time.
Copu time is just the accumulation of measured CPU usage attributed to the job - not the same as the actual total cpu that job consumed due to capture ratios etc.

So A job can run for an hour and use much less cpu time than an hour - waiting for I/O e.g.
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