third_party/perfetto/test/trace_processor/diff_tests/translation/chrome_histogram.textproto

# Chrome histogram hashes translation rules
packet {
  translation_table {
    chrome_histogram {
      hash_to_name { key: 10 value: "histogram_name1" }
      hash_to_name { key: 20 value: "histogram_name2" }
    }
  }
}
# Track for slice begin/end events.
packet {
  timestamp: 0
  trusted_packet_sequence_id: 1
  track_descriptor {
    uuid: 12345
    thread {
      pid: 123
      tid: 345
    }
    parent_uuid: 0
    chrome_thread {
      thread_type: THREAD_POOL_FG_WORKER
    }
  }
}
# Known histogram hash, should be translated to a name
packet {
  trusted_packet_sequence_id: 1
  timestamp: 1

  track_event {
    categories: "cat1"
    track_uuid: 12345
    type: 1
    name: "slice1"
    chrome_histogram_sample {
      name_hash: 10
      sample: 100
    }
  }
}
# Another known hash, should be translated to a name
packet {
  trusted_packet_sequence_id: 1
  timestamp: 2
  track_event {
    categories: "cat2"
    track_uuid: 12345
    type: 1
    name: "slice2"
    chrome_histogram_sample {
      name_hash: 20
    }
  }
}
# Unknown hash, should not be translated to any name
packet {
  trusted_packet_sequence_id: 1
  timestamp: 3
  track_event {
    categories: "cat3"
    track_uuid: 12345
    type: 1
    name: "slice3"
    chrome_histogram_sample {
      name_hash: 30
    }
  }
}

# Slice end events
packet {
  trusted_packet_sequence_id: 1
  timestamp: 6000
  track_event {
    track_uuid: 12345
    categories: "cat3"
    name: "slice3"
    type: 2
  }
}

packet {
  trusted_packet_sequence_id: 1
  timestamp: 6001
  track_event {
    track_uuid: 12345
    categories: "cat2"
    name: "slice2"
    type: 2
  }
}

packet {
  trusted_packet_sequence_id: 1
  timestamp: 6002
  track_event {
    track_uuid: 12345
    categories: "cat1"
    name: "slice1"
    type: 2
  }
}