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% Used CPU

 
Greenhorn
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Hi !!!
Is it possible to get the percent used by CPU from a java code ???
Thanks a lot
 
Author and all-around good cowpoke
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IF your operating system provides a command line utility that can list processes etc. - you can execute it with exec(), catch the output stream and parse it. In Windows XP (?other versions?) type the following at a command prompt:
typeperf /?

Bill
 
(instanceof Sidekick)
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In Java 5 or later, see JConsole. The APIs it uses are available to you, too. I'd keep this kind of thing in a separate monitor application and not embed it in a real business app. Probably.
 
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The information obtained by JConsole is obtained via the JMX API -- basically, java 5 JVM includes a built-in mbean server. This means any external program can obtain an mbean server connection to get the same information.

The internal application (code running in the JVM) can obtain the mxbeans directly via the ManagementFactory class -- which is much easier than using an mbean server connector.

See this tutorial for more information.

Henry
 
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