Specifications

Table Of Contents
VMware, Inc. 151
Chapter 6 Performance Tuning and the VMware Server Host
VMware Server on a Windows Host
The!items!in!this!section!describe!performance!of!VMware!Server!on!a!Windows!host.!
For!tips!on!configuring!VMware!Server!on!a!Linux!host,!see!“VMware!Server!on!a!
Linux!Host”!on!page 154.
Monitoring Virtual Machine Performance
VMware!Server!incorporates!a!set!of!counters!that!work!with!the!Microsoft!
Performance!console!to!allow!for!the!collection!of!performance!data!from!running!
virtual!machines.
NOTE The!Performance!console!is!available!only!on!Windows!hosts.!You!cannot!
monitor!performance!for!virtual!machines!on!Linux!hosts.!However,!you!can!
monitor!the!performance!of!any!guest!operating!system!on!the!Windows!host,!
including!Linux!guests.
The!VMware!Server!performance!counters!can!monitor!the!following!data!from!a!
running!virtual!machine:
! Reading!and!writing!to!virtual!disks
! Memory!used!by!the!virtual!machine
! Virtual!network!traffic
You!can!track!virtual!machine!performance!only!when!the!VMware!Server!Console!is!
open!or!when!a!virtual!machine!is!running.!The!performance!counters!reflect!the!state!
of!the!virtual!machine,!not!the!guest!operating!system.!For!example,!the!counters!can!
record!how!often!the!guest!reads!from!
a!virtual!disk,!but!they!cannot!know!how!many!
processes!are!running!inside!the!guest.!An!explanation!of!each!counter!appears!in!the!
Performance!console.