com.sleepycat.je.utilint

Class JVMSystemUtils

java.lang.Object

com.sleepycat.je.utilint.JVMSystemUtils

public class JVMSystemUtils
extends Object

Field Summary

Fields

Modifier and Type	Field and Description
static int	MIN_HEAP_MB Zing will bump the heap up to 1 GB if -Xmx is smaller.
static boolean	ZING_JVM

Constructor Summary

Constructors

Constructor and Description
JVMSystemUtils()

Method Summary

Modifier and Type	Method and Description
static void	addZingJVMArgs(List<String> command) Appends Zing-specific Java args, should be called before starting a Java process.
static long	getRuntimeMaxMemory() Returns the max amount of memory in the heap available, using an approach that depends on the JVM vendor, OS, etc.
static double	getSystemLoad()
static long	getSystemZingMemorySize() Returns the size of the System Zing Memory pool.
static void	insertZingJVMArgs(List<String> command) Insert Zing-specific Java args after the 'java' command, if 'java' is the 0th element.

Methods inherited from class java.lang.Object

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

Field Detail

ZING_JVM

public static final boolean ZING_JVM

MIN_HEAP_MB

public static final int MIN_HEAP_MB

Zing will bump the heap up to 1 GB if -Xmx is smaller.

Constructor Detail

JVMSystemUtils

public JVMSystemUtils()

Method Detail

getSystemLoad

public static double getSystemLoad()

getRuntimeMaxMemory

public static long getRuntimeMaxMemory()

Returns the max amount of memory in the heap available, using an approach that depends on the JVM vendor, OS, etc. May return Long.MAX_VALUE if there is no inherent limit.

getSystemZingMemorySize

public static long getSystemZingMemorySize()

Returns the size of the System Zing Memory pool. This is the max memory for all running Zing JVMs.

addZingJVMArgs

public static void addZingJVMArgs(List<String> command)

Appends Zing-specific Java args, should be called before starting a Java process.

insertZingJVMArgs

public static void insertZingJVMArgs(List<String> command)

Insert Zing-specific Java args after the 'java' command, if 'java' is the 0th element.