Compaq ProLiant 4000 Performance of Microsoft Exchange Server 4.0 on Compaq Pr - Page 12
Pentium/133 - proliant 3000
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WHITE PAPER (cont.) NOTE: 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 1...2 • This example also shows how there is little benefit in adding a CPU when the system nisot 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 PENTIUM/133 EXCHANGE SERVER HARDWARE CONFIGURATION 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 Pagefile and executables volum:e1x2GB Fast Wide SCSI2 drive EISA SMART Controller 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) Network Interface Compaq NetFlex/3 (10BaseT) Operating System Windows NT Server v3.51 + SP4 Table 5. Pentium/133 Exchange Server hardware configuration LoadSim Score vs. # Users ProLiant 4500, Pentium/133 - 2MB L2 3000 (lower score is better) 2500 Score 2000 1P 1500 2P 1000 500 0 300 500 800 1000 Number of Users 1200 Figure 3. Relative Score performance of Pentium/133.