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Enter a command. For example: xfce4 terminal, xcursorgen.

perf

Framework for Linux performance counter measurements. More information: https://perf.wiki.kernel.org.

• Display basic performance counter stats for a command:
   
  perf stat {{gcc hello.c}}
   
• Display system-wide real-time performance counter profile:
   
  sudo perf top
   
• Run a command and record its profile into perf.data:
   
  sudo perf record {{command}}
   
• Record the profile of an existing process into perf.data:
   
  sudo perf record -p {{pid}}
   
• Read perf.data (created by perf record) and display the profile:
   
  sudo perf report