org.apache.flink.runtime.util

Class Hardware

java.lang.Object

org.apache.flink.runtime.util.Hardware

public class Hardware
extends Object

Convenience class to extract hardware specifics of the computer executing the running JVM.

Method Summary

Modifier and Type	Method and Description
static int	getNumberCPUCores() Gets the number of CPU cores (hardware contexts) that the JVM has access to.
static long	getSizeOfPhysicalMemory() Returns the size of the physical memory in bytes.

Methods inherited from class java.lang.Object

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

Method Detail

getNumberCPUCores

public static int getNumberCPUCores()

Gets the number of CPU cores (hardware contexts) that the JVM has access to.

Returns:

The number of CPU cores.

getSizeOfPhysicalMemory

public static long getSizeOfPhysicalMemory()

Returns the size of the physical memory in bytes.

Returns:

the size of the physical memory in bytes or -1, if the size could not be determined.