dynamic memory overview动态存储器概述

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1、DynamicmemoryoverviewDynamicmemoryallowsyoutoconfigureavirtualmachinesothattheamountofmemoryassignedtothevirtualmachineisadjustedwhilethevirtualmachineisrunning,inreactiontotheamountofmemorythatisactuallybeingusedbythevirtualmachine.Thisallowsyoutorunahighernumberofvirtualmachinesonagivenphy

2、sicalcomputer.Italsoensuresthatmemoryisalwaysdistributedoptimallybetweenrunningvirtualmachines.Beforeenablingdynamicmemoryinavirtualmachineyouneedtoensurethatthelatestversionofintegrationservicesisinstalledinthevirtualmachine.Youcanthenenabledynamicmemoryforavirtualmachineusingthememorysetti

3、ngsunderthevirtualmachinesettings.Oncedynamicmemoryisenabledtherearefourparametersthatyoucanconfigure:·Initialmemory.Thisistheamountofmemorythatisrequiredtostartthevirtualmachine.Thisvalueneedstobehighenoughtoallowtheguestoperatingsystemtoboot,butshouldbeaslowaspossibletoallowforoptimalperfo

4、rmancewithdynamicmemory.Thevirtualmachinewillneverbeassignedlessmemorythantheinitialmemoryvalue.·Maximummemory.Thevirtualmachinewillnotbeallowedtousemorememorythanisspecifiedbythisvalue.Thisvaluecanbeconfiguredanywherefromtheinitialmemoryvalueupto64GB.·Memorybuffer.Thememorybuffervalueindica

5、teshowmuchmemoryisassignedtothevirtualmachinewhencomparedtotheamountofmemoryactuallyneededbytheapplicationsandservicesrunninginsidethevirtualmachine.Thememorybufferwillnotbemaintainedifthereisnotenoughphysicalmemoryavailableinthecomputertogiveeveryvirtualmachineitsrequestedmemorybuffer.·Memo

6、rypriority.Thememorypriorityvaluereflectshowmemorywillbedistributedamongstvirtualmachinesifthereisnotenoughphysicalmemoryavailableinthecomputertogiveeveryvirtualmachineitsrequestedamountofmemory.Higherpriorityvirtualmachineswillbegivenmorememorywhencomparedtolowerpriorityvirtualmachineswiths

7、imilarsettings.SupportedguestoperatingsystemsDynamicmemoryissupportedforthefollowingguestoperatingsystems:·WindowsServer2008R2EnterpriseEdition(32-bitand64-bit)·WindowsServer2008R2DatacenterEdition(32-bitand64-bit)·Windows7UltimateEdition(32-bitand