3.1

VMware, Inc. 45
Chapter 2 Installation
On32‐bitWindowssystems,themaximumsizeofanallocatedcontiguousmemory
blockis2GB.TheJVMheapisimplementedasacontiguousmemoryblockand~0.5GB
ofthatspaceisrequiredbytheJVMitselffornormaloperation.Therefore,ona32‐bit
Windowssystem,JVMprogramscanonly
useupto~1.5GBofmemoryperprocess.
1GBisenoughtoaccommodateapproximately1500concurrentdesktopsessions.
To increase the size of the JVM heap to 1GB on Windows Server
1StarttheWindowsRegistryEditorbyenteringregeditfromacommandprompt.
2 LocatethefollowingsubkeyintheregistryandclickJvmOptions:
HKLM\SOFTWARE\VMware, Inc.\VMware VDM\Plugins\wsnm\tunnelService\Params
3OntheEditmenu,clickModify.YouarepresentedwithaWindowsdialogbox
thatcontainsanentryresemblingthefollowing:
-Xms128m -Xmx512m -Dsimple.http.poller=simple.http.GranularPoller
-Dsimple.http.connect.configurator=com.vmware.vdi.front.SimpleConfigurator
4Modifythe-Xmxparametersothatitreads-Xmx1024m.Theentryinthedialognow
reads:
-Xms128m -Xmx1024m -Dsimple.http.poller=simple.http.GranularPoller
-Dsimple.http.connect.configurator=com.vmware.vdi.front.SimpleConfigurator
5ClickOKandexitRegistryEditor.
6Restartthesystem.
CAUTIONYoumustnotraisetheJVMheapsizetomorethan1.5GB.Allocatingaheap
sizegreaterthanthisamountresultsintheViewConnectionServerservicefailingto
start.