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GetCurrentThreadCpuTime [message #93465]

Wed, 14 March 2007 09:41

Eclipse User

Originally posted by: schlossh.fh-trier.de

Hi everyone,

I would like to access the JVMTI's GetCurrentThreadCPUTime method from
within my Java-Application, just like it is described for JVMPI in
http://www.javaworld.com/javaworld/javatips/jw-javatip92.htm l?page=3. Do you
have any idea how it could work?

Thank you

Hermann

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Re: GetCurrentThreadCpuTime [message #93496 is a reply to message #93465]

Wed, 14 March 2007 15:28

Asaf Yaffe

Messages: 333
Registered: July 2009

Senior Member

Hermann Schloss wrote:
> Hi everyone,
>
> I would like to access the JVMTI's GetCurrentThreadCPUTime method from
> within my Java-Application, just like it is described for JVMPI in
> http://www.javaworld.com/javaworld/javatips/jw-javatip92.htm l?page=3. Do you
> have any idea how it could work?
>
> Thank you
>
> Hermann
>
>

Literally, JVMTI functions such as GetCurrentThreadCPUTime cannot be
accessed from a pure Java application. However, you can use the same
technique described in the included link to expose some JVMTI functions
to a Java program through JNI. Converting the example to JVMTI is pretty
straightforward. Take a look at the following link for an introduction
on how to write JVMTI agents:
http://java.sun.com/developer/technicalArticles/J2SE/jvm_ti/

HTH,
Asaf

--
Asaf Yaffe
Eclipse TPTP Committer, JVMTI Profiler

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