OMemory (OrientDB 4.0.0-SNAPSHOT API)

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

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 Details
- 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.