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Oracle Performance Firefighting, written by
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Figure 9-22 provides the metrics for our operating system investigation. While not shown, neither the network or memory subsystem is an issue.
Figure 9-22. Shown is the operating system analysis information entered into a firefighting diagnostic template. There is no CPU or IO bottleneck. Oracle is consuming 26.1% of the CPU resources, and based on vmstat observations and v$osstat data, CPU utilization is around 28%. The IO subsystem is responding to IO requests in less than 1 ms! All IO data was gathered from the Oracle v$sysstat performance view.
The CPU subsystem consists of a single four-CPU core. Based on both vmstat observations and v$osstat view data, on average, the CPUs are about 28% utilized. Over the 30-minute data collection interval, the CPU subsystem has the capacity to supply 7,203 seconds of CPU. Based on the Oracle service time analysis, Figure 9-21 shows Oracle consumed about 1,880 seconds of CPU, meaning Oracle consumed about 26% of the available CPU resources.
©2009, 2010 by Craig Shallahamer. This is copyrighted material.
PleaseOut of respect for those involved in the creation of the book and also for
their familes, we ask you to respect the copyright both in intent and deed. Thank you.
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