Compaq 108164-003 - ProLiant - 800 White Paper page 12

N :
OTE
These test results are based on a
configuration that included
Public Folders and Schedule
Plus. We feel that this profile
better represents an actual
customer environment. In a
similar report produced by
Microsoft, testing did not include
Public Folders or Schedule Plus
and therefore produced
significantly different results.
444A/0696
W P
HITE APER
(cont.)
. .
. .
This example also shows how there is little benefit in adding a CPU when the system is not
. .
processor constrained. In the case of going from 2P to 4P the response time improves very
. .
. . little until you get above 800 users, which is where 2P becomes processor constrained.
. .
. .
There is a tradeoff in adding CPUs to the processor subsystem due to system overhead.
. .
System requests and context switches increase substantially as more CPUs are added.
. .
. .
. .
Pentium/133
. .
. .
. .
P /133 E
ENTIUM XCHANGE
. .
. .
. .
. . Machine Class Compaq ProLiant 4500
. .
. .
Processor Subsystem 1,2 Pentium/133, 2 Mbyte L2 cache
. .
. .
System Memory
128 Mbytes
. .
. .
Disk Subsystem Integrated Fast Wide SCSI-2 controller
. .
. .
. .
. .
EISA SMART Controller
. .
. .
. .
. .
. .
. .
. .
Network Interface Compaq NetFlex/3 (10BaseT)
. .
. .
Operating System Windows NT Server v3.51 + SP4
. .
. .
Table 5. Pentium/133 Exchange Server hardware configuration
. .
. .
. .
. .
. .
. .
. .
. .
. .
3000
. .
. .
. .
2500
. .
. .
. .
. .
2000
. .
. .
. .
1500
. .
. .
. .
1000
. .
. .
. .
. .
500
. .
. .
. .
0
. .
300
. .
. .
. .
. .
. .
. . Figure 3. Relative Score performance of Pentium/133.
. .
. .
. .
. .
. .
12
S
ERVER HARDWARE CONFIGURATION
Pagefile and executables volume : 1x2GB Fast Wide SCSI-
2 drive
Log volume : 2x2GB Fast SCSI-2 drives on port 0, RAID 1
(Array Accelerator enabled)
IS volume: 7x2GB Fast SCSI-2 drives on port 1, RAID 5
(Array Accelerator enabled)
LoadSim Score vs. # Users
ProLiant 4500, Pentium/133 - 2MB L2
(lower score is better)
500 800
Number of Users
1000 1200
1P
2P