Dell PowerEdge R820 - Manual (Page 14)

Consolidating Oracle Databases on the Dell PowerEdge R820 Server Using Oracle VM
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Figure 3 gives the snapshot of average query response time of the legacy production environment for
different userloads. It can be observed that 4800 is the max userload supported within 2 sec SLA.
Figure 4 is the CPU utilization of legacy production system at 4800 userload. As explained earlier, CPU
utilization >= 90% is considered as saturation. from Figure 3 it is evident that average CPU utilization is
~93%, and iowait is ~0.13. Based on the server CPU utilization levels it can be considered that legacy
production system is almost saturated.
Hence figures 3 and 4 allow us to conclude that max userload supported by the legacy PowerEdge 2950
III was 4800.
TPS of legacy production environment Figure 5.
at saturation
0
50
100
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200 4
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6
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800
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1200 14
00
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1800 2000 2200 24
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3200 34
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0
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3800 4
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4
00
4
600
4
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0
T
P
S
Userload
Legacy PE 2950 III - TPS vs Userload