Home/ Questions/Q 365533
In Process

The Archive Base Latest Questions

Editorial Team
  • 0
Asked: 2026-05-12T13:32:47+00:00

with Runtime.getRuntime().availableProcessors(); I can get the numbers of CPU avaiable. But how can I

  • 0

with 

Runtime.getRuntime().availableProcessors();

I can get the numbers of CPU avaiable.

But how can I get their clock frequency?

I was searching for a os-indipendent solution.

Share

Leave an answer

You must login to add an answer.

Need An Account,

1 Answer

  1. Editorial Team

    There is no feature available in the Java SE API which will return the frequency of the CPU.

    Also, the Runtime.availableProcessors method returns the number of processors available to the Java virtual machine at the time the method is called, so it won’t necessarily return the number of actual processors in a system.

    From the Java API Specification for the Runtime.availableProcessors method:

    Returns the number of processors
    available to the Java virtual machine.

    This value may change during a
    particular invocation of the virtual
    machine. Applications that are
    sensitive to the number of available
    processors should therefore
    occasionally poll this property and
    adjust their resource usage
    appropriately.

    In order to obtain such information, most likely, one would have to make calls the operating system using native calls via Java Native Interface (JNI).

    • 0