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Monitoring for available CPU time?

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The Question is:

 
We would like to use the monitor command and more particulary  :
$monitor mode/flush_interval=30/summary=fic.sum
in order to exploit CPU occupation.
The file is written a first time and never updated. So we won't be able to work
 with this file.(However the monitor help tell us that data are written on the
 disk at each interval! )
Is there a solution to update this file at regular intervals ?
 
An other question is about the use of the command : $ monitor/record which
 generate a binary file.
How could we decode this file to extract informations ?
 
Thanks for your answer.

The Answer is :

 
  Please see the exe$getspi information (an undocumented API) discussed
  elsewhere here in Ask The Wizard -- pointers to the related SPI examples
  on the OpenVMS Freeware website are available here, as well.

  
     
     answer written or last revised on ( 20-JUL-2000 )
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