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

Class IsolatedProcessors

java.lang.Object

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

final class IsolatedProcessors
extends Object

Method Summary

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 SortedSet<Integer>	get()
(package private) static SortedSet<Integer>	parseProcessorRange(String range)

Methods inherited from class java.lang.Object

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

Method Details

get

static SortedSet<Integer> get()
                       throws IOException

Throws:

IOException

parseProcessorRange

static SortedSet<Integer> parseProcessorRange(String range)

disableCpu

static void disableCpu(int cpu)
                throws 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:

IOException

enableCpu

static void enableCpu(int cpu)
               throws IOException

Throws:

IOException