buffers: {
    size_kb: 522240
    fill_policy: RING_BUFFER
}
data_sources {
  config {
    name: "track_event"
    track_event_config {
        enabled_categories: "glcalls"
        disabled_categories: "*"
    }
  }
}
duration_ms: 1800000
flush_period_ms: 30000
incremental_state_config {
    clear_period_ms: 5000
}