test/trace_processor/parsing/android_multiuser_switch.textproto

packet {
  process_tree {
    processes {
      pid: 2609
      ppid: 129
      cmdline: "system_server"
      uid: 1000
    }
  }
  process_tree {
    processes {
      pid: 5993
      ppid: 129
      cmdline: "com.android.systemui"
      uid: 10216
    }
  }
}
packet {
  ftrace_events {
    cpu: 3
    event {
      timestamp: 3000000000 # 3e9
      pid: 4064
      print {
        buf: "S|5993|UserDetailView.Adapter#onClick|0\n"
      }
    }
  }
}
packet {
  ftrace_events {
    cpu: 3
    event {
      timestamp: 3100000000
      pid: 4064
      print {
        buf: "F|5993|UserDetailView.Adapter#onClick|0\n"
      }
    }
  }
}
packet {
  ftrace_events {
    cpu: 2
    event {
      timestamp: 5186970000
      pid: 4032
      print {
        buf: "S|2609|MetricsLogger:launchObserverNotifyIntentStarted|0\n"
      }
    }
  }
}
packet {
  ftrace_events {
    cpu: 2
    event {
      timestamp: 5187000000
      pid: 4032
      print {
        buf: "F|2609|MetricsLogger:launchObserverNotifyIntentStarted|0\n"
      }
    }
  }
}
packet {
  ftrace_events {
    cpu: 2
    event {
      timestamp: 5200000000
      pid: 4065
      print {
        buf: "S|2609|launching: com.google.android.apps.nexuslauncher|0\n"
      }
    }
  }
}
packet {
  ftrace_events {
    cpu: 2
    event {
      timestamp: 7900000000 # 7.9e9
      pid: 4065
      print {
        buf: "F|2609|launching: com.google.android.apps.nexuslauncher|0\n"
      }
    }
  }
}
packet {
  ftrace_events {
    cpu: 2
    event {
      timestamp: 7900016000
      pid: 4075
      print {
        buf: "S|2609|MetricsLogger:launchObserverNotifyActivityLaunchFinished|0\n"
      }
    }
  }
}
packet {
  ftrace_events {
    cpu: 2
    event {
      timestamp: 7900516000
      pid: 4075
      print {
        buf: "F|2609|MetricsLogger:launchObserverNotifyActivityLaunchFinished|0\n"
      }
    }
  }
}