com.orientechnologies.common.util

Class OMemory

java.lang.Object

com.orientechnologies.common.util.OMemory

public class OMemory
extends Object

Provides various utilities related to memory management and configuration.

Author:

Sergey Sitnikov

Method Summary

Modifier and Type	Method and Description
static void	checkCacheMemoryConfiguration() Checks the OrientDB cache memory configuration and emits a warning if configuration is invalid.
static void	fixCommonConfigurationProblems() Tries to fix some common cache/memory configuration problems: Cache size is larger than direct memory size.
static long	getCappedRuntimeMaxMemory(long unlimitedCap)

Methods inherited from class java.lang.Object

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

Method Detail

getCappedRuntimeMaxMemory

public static long getCappedRuntimeMaxMemory(long unlimitedCap)

Parameters:

unlimitedCap - the upper limit on reported memory, if JVM reports unlimited memory.

Returns:

same as Runtime.maxMemory() except that unlimitedCap limit is applied if JVM reports unlimited memory.

checkCacheMemoryConfiguration

public static void checkCacheMemoryConfiguration()

Checks the OrientDB cache memory configuration and emits a warning if configuration is invalid.

fixCommonConfigurationProblems

public static void fixCommonConfigurationProblems()

Tries to fix some common cache/memory configuration problems:

• Cache size is larger than direct memory size.
• Memory chunk size is larger than cache size.