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Spotlight on Oracle 10.4 - Getting Started Guide

Welcome to Spotlight Install Spotlight Start Spotlight Spotlight on Oracle Spotlight on Oracle Data Guard Spotlight on Oracle RAC Spotlight on Unix Spotlight on Windows Spotlight on MySQL Troubleshooting: Connection Problems

CPU Page

The CPU page contains several charts.

To open the network page

  1. Select the Spotlight on Unix connection in the Spotlight Browser.
  2. Click Activity Summary | CPU.

Charts on the CPU page


  • Every chart has a legend (list of symbols) to its right that describes the various series (line graphs) on the chart.
  • Click an item in the legend to highlight its series (line) in the chart. Click a second time to return the series to its normal appearance.
  • Move the mouse pointer over an item in the legend to view the current value for that series within the chart.
Chart Description
Total CPU Usage The total CPU utilization for all processors on the Unix host.
CPU Usage by Processor The CPU utilization for each processor on the Unix host. Each processor is represented by a single line on the chart, and by an item in the legend at the top right of the chart.
Run Queues The number of threads (program execution units) that are waiting to run on the Unix host.
Context Switching

The rate at which the Unix host has been processing context switches.

A context switch occurs when a processor switches from one thread to another. Context switches occur when a running thread voluntarily relinquishes the processor, is pre-empted by a higher priority ready thread, or switches between user-mode and privileged (kernel) mode to invoke a system service.


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