Yocto Project Profiling and Tracing Manual

Table of Contents

• 1 Yocto Project Profiling and Tracing Manual
  • 1.1 Introduction
  • 1.2 General Setup
• 2 Overall Architecture of the Linux Tracing and Profiling Tools
  • 2.1 Architecture of the Tracing and Profiling Tools
• 3 Basic Usage (with examples) for each of the Yocto Tracing Tools
  • 3.1 perf
    • 3.1.1 Perf Setup
    • 3.1.2 Basic Perf Usage
      • 3.1.2.1 Using perf to do Basic Profiling
      • 3.1.2.2 Using perf to do Basic Tracing
      • 3.1.2.3 System-Wide Tracing and Profiling
        • 3.1.2.3.1 Filtering
      • 3.1.2.4 Using Dynamic Tracepoints
    • 3.1.3 Perf Documentation
  • 3.2 ftrace
    • 3.2.1 ftrace Setup
    • 3.2.2 Basic ftrace usage
    • 3.2.3 The ‘trace events’ Subsystem
    • 3.2.4 trace-cmd/kernelshark
    • 3.2.5 ftrace Documentation
  • 3.3 systemtap
    • 3.3.1 systemtap Setup
    • 3.3.2 Running a Script on a Target
    • 3.3.3 systemtap Documentation
  • 3.4 Sysprof
    • 3.4.1 Sysprof Setup
    • 3.4.2 Basic Sysprof Usage
    • 3.4.3 Sysprof Documentation
  • 3.5 LTTng (Linux Trace Toolkit, next generation)
    • 3.5.1 LTTng Setup
    • 3.5.2 Collecting and Viewing Traces
      • 3.5.2.1 Collecting and viewing a trace on the target (inside a shell)
      • 3.5.2.2 Collecting and viewing a userspace trace on the target (inside a shell)
    • 3.5.3 LTTng Documentation
  • 3.6 blktrace
    • 3.6.1 blktrace Setup
    • 3.6.2 Basic blktrace Usage
      • 3.6.2.1 Live Mode
      • 3.6.2.2 Using blktrace Remotely
      • 3.6.2.3 Tracing Block I/O via ‘ftrace’
    • 3.6.3 blktrace Documentation
• 4 Real-World Examples
  • 4.1 Slow Write Speed on Live Images
• 5 Manual Revision History

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