Specifications

Table Of Contents
VMware, Inc. 255
Chapter 10 Performance Tuning for Virtual Machines
performance!for!some!functions.!Install!VMware!Tools!by!choosing!VM!>!Install!
VMware!Tools.
DMA Mode for IDE Disks
Windows!95!OSR2!and!higher!(including!Windows!98)!can!use!direct!memory!access!
(DMA)!for!faster!IDE!hard!disk!access.!However,!DMA!might!not!be!enabled!by!
default.
You!can!turn!on!DMA!access!using!the!guest!operating!system’s!Device!Manager.
1Rightclick!My!Computer!and!choose!Properties!from!the!popup
!menu.!
2Click!the!+!sign!beside!Disk!Drives!to!show!your!virtual!machine’s!individual!
drives.!
3Rightclick!the!entry!for!each!IDE!drive!to!open!its!Properties!dialog!box.!
4Under!Settings,!check!the!box!labeled!DMA!and!accept!any!warning!Windows!
displays.!
5Restart!the!Windows!guest!for!the!new!settings
!to!take!effect.!
Full Screen Mode
Run!your!virtual!machine!in!full!screen!mode.!Click!the!Full!Screen!button!on!the!
VMware!Virtual!Machine!Console!toolbar.
Swap File Usage
In!your!system.ini!file,!in!the![386enh]!section,!add!the!following!line:
ConservativeSwapFileUsage=1
Disconnect CD-ROM
Using!the!Removable!Devices!submenu,!disconnect!your!CDROM!drive!if!you!do!not!
need!to!use!it.!Disconnecting!the!CDROM!drive!reduces!processor!usage.
Visual Effects
Windows!98!has!a!number!of!visual!effects,!designed!to!be!attractive,!that!place!
unnecessary!demands!on!the!graphics!emulation!in!VMware!Server.!Some!users!have!
seen!performance!improvements!when!they!turn!off!these!special!effects.
To!modify!these!settings,!rightclick!on!the!desktop!of!your!virtual!machine,!then!select!
Properties!from!the!popup!menu.!Click!the!Effects!tab!and!deselect!the!Animate!
windows,!menus,!and!lists!check!box.