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13
VMWARE WHITE PAPER
3.8. Microsoft Exchange Server 2007
Inthisexperiment,theLoadgenworkloadwasusedtogenerateloadagainstMicrosoftExchangeServer2007.Aheavyuserprole
with 1600 users was used. This benchmark measures latency of operations as seen from the client machine. The performance charts
belowreportbothaveragelatencyand95thpercentilelatencyforvariousExchangeoperations.Thegenerallyacceptedthresholdfor
acceptable latency is 500 ms for the Send Mail operation. While FT caused a slight increase, the observed SendMail latency was well
under 500 ms with and without FT.
Figure 13. Microsoft Exchange Server 2007 Performance
0
20
10
30
70
60
40
50
80
FT Disabled
FT Enabled
Microsoft Exchange Server 2007
(lower is better)
Milliseconds
Send Mail Average Latency
FT trac:
13 to 20 Mbits/sec
Figure 14. Microsoft Exchange Server 2007 Performance
0
50
200
100
150
250
FT Disabled
FT Enabled
Microsoft Exchange Server 2007
(lower is better)
Milliseconds
Send Mail 95 Percentile Latency