Package org.apache.bookkeeper.common.util.affinity.impl

Class IsolatedProcessors

  • final class IsolatedProcessors
extends java.lang.Object

    • Method Summary

      All Methods Static Methods Concrete Methods 
      Modifier and Type Method Description
      (package private) static void disableCpu​(int cpu)
      Instruct Linux to disable a particular CPU.
      (package private) static void enableCpu​(int cpu)  
      (package private) static java.util.SortedSet<java.lang.Integer> get()  
      (package private) static java.util.SortedSet<java.lang.Integer> parseProcessorRange​(java.lang.String range)  

      • Methods inherited from class java.lang.Object

        clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

    • Method Detail

      • get

        static java.util.SortedSet<java.lang.Integer> get()
                                           throws java.io.IOException
        Throws:
        java.io.IOException

      • parseProcessorRange

        static java.util.SortedSet<java.lang.Integer> parseProcessorRange​(java.lang.String range)

      • disableCpu

        static void disableCpu​(int cpu)
                throws java.io.IOException
        Instruct Linux to disable a particular CPU. This is used to disable hyper-threading on a particular core, by shutting down the cpu that shares the same core.
        Throws:
        java.io.IOException

      • enableCpu

        static void enableCpu​(int cpu)
               throws java.io.IOException
        Throws:
        java.io.IOException