Hardware (Flink : Runtime 2.0.0.0-dep-1000 API)

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

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 Details
- 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.