// trace_processor probe example
{
  "probes": {
    "trace_processor": {
      "queries": [
        "speedometer_cpu_time"
      ]
      "metrics": [
        "trace_stats"
      ]
    }
    "perfetto": {
      "textproto":
        '''
          buffers {
            size_kb: 300000
            fill_policy: DISCARD
          }
          data_sources {
            config {
              name: "org.chromium.trace_metadata2"
            }
          }
          data_sources {
            config {
              name: "track_event"
              track_event_config {
                disabled_categories: "*"
                enabled_categories: "blink.user_timing"
                enabled_categories: "toplevel"
                enabled_categories: "__metadata"
                timestamp_unit_multiplier: 1000
                enable_thread_time_sampling: true
                filter_debug_annotations: false
                filter_dynamic_event_names: false
              }
            }
          }
          data_sources: {
            config {
                name: "linux.ftrace"
              ftrace_config {
                ftrace_events: "sched/sched_switch"
                ftrace_events: "power/suspend_resume"
                ftrace_events: "sched/sched_wakeup"
                ftrace_events: "sched/sched_wakeup_new"
                ftrace_events: "sched/sched_waking"
                ftrace_events: "sched/sched_process_exit"
                ftrace_events: "sched/sched_process_free"
                ftrace_events: "task/task_newtask"
                ftrace_events: "task/task_rename"
              }
            }
          }
        '''
    }
  }
}