Analyzing Your System with Kernel Tracing

The instrumented kernel can gather a variety of events, including:

• kernel calls
• process manager activities
• interrupts
• scheduler changes
• context switches
• user-defined trace data

• Introducing the QNX System Profiler
  
• Before you begin
  
• Configuring a target for system profiling
  
• Launching the Log Configuration dialog
  
• Address translation
  
• Configuring your kernel event trace
  
• Capturing instrumentation data in event log files
  
• Viewing and interpreting the captured data
  
• System Profiler editor
  
• Timeline view
  
• Timeline State Colors view
  
• Zooming
  
• Filtering profile data
  
• Raw Event Data view
  
• Trace Event Log view
  
• Properties view
  
• Tracking down events
  
• Trace Search
  
• Bookmarks view
  
• Gathering statistics from trace data
  
• General Statistics view
  
• Event Owner Statistics view
  
• Client/Server CPU Statistics view
  
• Overview view
  
• Condition Statistics view
  
• Thread Call Stack view
  
• Determining thread state behavior
  
• Thread State Snapshot view
  
• Why Running? view
  
• Analyzing multiprocessor systems
  
• CPU Migration pane
  
• Analyzing systems with AP scheduling
  
• Partition Summary pane
  
• Using Function Instrumentation mode with the System Profiler
  
• Importing part of a kernel trace into the Application Profiler
  
• System Profiler use cases
  
• Locating sources of high CPU usage
  
• Mapping and isolating client CPU load from server CPU load
  
• Examining interrupt latency
  
• Locating Events of Interest
  

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