Best Practices for SAP BI using DB2 9 for z/OS - IBM Redbooks

The number of queries per hour shown in Table 11-3 is the number of business
reports (user queries) per hour.
Table 11-3 BI Accelerator query test results: throughput, selectivity, response time
DB/blade size Throughput
(queries/hr)
Response
time
(seconds)
The average CPU utilization on the database server on System z for this
workload at steady state was less than 10%. They were 6.7%, 7.2%, and 6.2%
for 5 TB, 15 TB, and 25 TB, respectively.
The next three figures show the average CPU load utilization of our SAP BI back
end on System p and SAP BI Accelerator on the cluster of blades for the three
measurement points during multi-user test scenarios. The average high load is
the measured CPU utilization for approximately 15 minutes of peak steady state.
Figure 11-8 shows that the average CPU high load of the SAP BI back end on
System p is 79.29%, and SAP BI Accelerator on the cluster of blades is 71.69%
for 5 TB and 27 blades.
Figure 11-8 Multiuser reporting: average CPU load 5 TB, 27 blades
248 Best Practices for SAP BI using DB2 9 for z/OS
QDBSEL
(records)
QDBTRANS
(records)
5 TB/27 blades 100,404 4.5 5,906,534 303 1.69
15 TB/81 blades 100,940 4.2 22,186,286 440 1.68
Part
provider
factor
25 TB/135 blades 100,712 4.2 36,767,954 520 1.69